酸zhòngyīngguànyònglìgōu:
| - bù, zhè dōng xī wén qǐ lái suān liù liù de。
No, it smell tart.- kē xué jiā men tōng guò fēi chuán、 fēi jī hé wèi xīng fā huí de 1995 nián dào 2000 nián yà zhōu běi bù dōng jì qī jiān de yòu guān qì xiàng shù jù lái duì yà zhōu zàng wù jìn xíng fēn xī yán jiū。 yán jiū fā xiàn, zhè piàn yān wù bù jǐn jǐn néng zǔ duàn yáng guāng shè rù hé yǐn qǐ dà qì céng shēng wēn, ér qiě hái néng gòu yǐn qǐ suān yǔ, zhè jiù duì nóng zuò wù hé shù mù gòu chéng liǎo wēi xié, ér qiě hái huì duì hǎi yáng zào chéng wū rǎn, duì nóng yè zào chéng shāng hài。
Using data from ships, planes and satellites to study Asia's haze during the northern winter months of 1995 to 2000, scientists discovered not only that the smog cut sunlight,heating the atmosphere, but also that it created acid rain, a serious threat to crops and trees, as well as contaminating oceans and hurting agriculture.- huǒ xiān wéi sù xiāo suān xiān wéi sù, yòng yú wú yān de zhà yào de zǔ chéng wù zhì
A cellulose nitrate used as a component of smokeless powder.- chī bù dào pú táo de rén shuō pú táo suān 。 ( gǔ xī là yù yán zuò jiā yī suǒ )
Some people pretend to despise the things they cannot have. (Aesop, ancient Greek fable writer)- táng lín suān zhǐ
aldose and ketose phosphates - ā 'ěr jí lì yà de yī zhǒng zhí wù, yuán lái yòng yú rán shāo diào lái huò qǔ tàn suān gài。
Algerian plant formerly burned to obtain calcium carbonate.- hè zǎo suān yán hè zǎo suān de yán lèi, rú hè zǎo suān nà
A salt of alginic acid, such as sodium alginate.- hè zǎo suān , hè zǎo jiāo rèn yī zhǒng cóng tè dìng de hè zǎo zhōng tí liàn chū lái de jiāo zhuàng yǎn shēng wù, rú hè zǎo suān nà hé hè zǎo suān 。 tā zuò wéi nián chóu jì、 wěn dìng jì、 rǔ huà jì huò xuán fú jì 'ér guǎng fàn yìng yòng yú gōng yè、 zhì yào yè hé rú bīng qí lín de shí pǐn shēng chǎn zhōng
Any of several derivatives, such as sodium alginate or alginic acid, of a gelatinous substance extracted from certain brown algae and widely used as a thickening, stabilizing, emulsifying, or suspending agent in industrial, pharmaceutical, and food products, such as ice cream.- rèn hé yī zhǒng zhī fáng zú de yī yuán suō suān , gòu chéng yóu zhì fènzǐ de bù fēn, kě tōng guò shuǐ jiě zhī fáng shēng chéng。
any of a class of aliphatic monocarboxylic acids that form part of a lipid molecule and can be derived from fat by hydrolysis.- suān yǔ jiǎn huà hé chéng yán。
The acid and alkali are combined in salt. - yìng lì qīng yòng lái zhì zào suān 、 jiǎn hé fáng shuǐ tú céng de tiān rán de hēi sè lì qīng
A natural black bitumen used in the manufacture of acid, alkali, and waterproof coatings.- huì zào chéng fǔ shí de wù zhì( rú qiáng suān huò qiáng jiǎn)。
a substance having the tendency to cause corrosion (such a strong acids or alkali).- yìng lì qīng shì yòng yú zhì zào suān 、 jiǎn hé fáng shuǐ fú de yī zhǒng tiān rán hēi lì qīng de shāng biāo
A trademark used for a natural black bitumen employed in the manufacture of acid, alkali, and waterproof coatings.- jiǎn jiǎn jīn shǔ de tàn suān yán huò qīng yǎng huà wù, qí shuǐ jiě róng yè wèi kǔ、 huá nì、 yòu fǔ shí xìng qiě zài fǎn yìng zhōng chéng jiǎn xìng
A carbonate or hydroxide of an alkali metal, the aqueous solution of which is bitter, slippery, caustic, and characteristically basic in reactions.- tōng guò jiā rè suān jiǎn huò zǐ wài xiàn lái gǎi biàn。
modify (as a native protein) esp. by heat, acid, alkali, or ultraviolet radiation so that all of the original properties are removed or diminished.- shǐ biàn zhì gǎi biàn( dàn bái zhì de) jié gòu, lì rú tōng guò jiā rè、 jiā jiǎn、 jiā suān děng děng, yǐ jiǎn shǎo huò xiāo chú( dàn bái zhì) yuán yòu de mǒu xiē tè xìng, yóu zhǐ qí shēng wù tè xìng
To alter the structure of(a protein), as with heat, alkali, or acid, so that some of its original properties, especially its biological activity, are diminished or eliminated.- suān jiǎn fèi shuǐ chǔlǐ
treatment of acid and alkaline wastewater - liú qíng suān de yī zhǒng yán, dāng jiǎn xìng qíng huà wù bèi liú huáng róng jiě shí xíng chéng。
a salt of thiocyanic acid; formed when alkaline cyanides are fused with sulfur. - zài rén tǐ nèi suān jiǎn píng héng zhuàng tài xià xuè yè wēi wēi chéng jiǎn xìng。
with a normal acid-base balance in the body the blood is slightly alkaline.- wū de hán yǎng suān ( duō wéi tiān rán de jù hé tǐ), tōng guò zhōng hé jiǎn xìng wū suān yán róng yè xíng chéng。
an oxyacid of tungsten (often polymeric in nature) formed by neutralizing alkaline tungstate solutions.- yī zhǒng zài suān xìng róng yè zhōng biàn hóng、 zài jiǎn xìng róng yè zhōng biàn lán de rǎn sè cái liào, yì zuò suān jiǎn xiǎn shì jì。
a coloring material that turns red in acid solutions and blue in alkaline solutions; used as an acid-base indicator.- dì 'èr shí jiǔ tiáo jìn zhǐ xiàng shuǐ tǐ pái fàng yóu lèi、 suān yè、 jiǎn yè huò zhě jù dú fèi yè。
Article 29 It is forbidden to discharge any oil, acid or alkaline solutions or deadly toxic liquid waste into any water body.- shí huī shuǐ shuǐ hé gài de yī zhǒng chéng qīng shí wú sè de shí huī shuǐ róng yè, kě yòng yú zhì liáo pí fū bìng huò qí tā zhì jì zhōng, yòu shí yòng zuò kàng suān jì
A clear colorless alkaline aqueous solution of calcium hydroxide, used in calamine lotion and other skin preparations and sometimes as an antacid.- gān 'ān suān yī zhǒng tián de jié jīng zhuàng 'ān jī suān , c2h5no2, shì gān zhè zhōng jī běn de 'ān jī suān , yóu míng jiāo de jiǎn xìng shuǐ jiě huò dé, yòng yú shēng wù huà xué yán jiū hé yī xué
A sweet-tasting crystalline nonessential amino acid, C2H5NO2, that is the principal amino acid occurring in sugar cane. It is derived from the alkaline hydrolysis of gelatin and used in biochemical research and medicine.- suān rèn hé yī lèi suān xìng de wù zhì, tā de shuǐ róng yè kě yǐ shǐ lán sè shí ruǐ shì zhǐ biàn hóng, yǔ jīn shǔ fǎn yìng huò róng jiě jīn shǔ shí kě xíng chéng yán, hé jiǎn fǎn yìng yì kě xíng chéng yán
Any of a large class of sour-tasting substances whose aqueous solutions are capable of turning blue litmus indicators red, of reacting with and dissolving certain metals to form salts, and of reacting with bases or alkalis to form salts.- ōu kè xī kè dìng yī zhǒng má zuì xìng de shēng wù jiǎn, c18h21no4, hé kě dài yīn yòu guān de, yòng zuò zhǐ yù yào hé zhèn jìng yào, zhù yào yǐ qí yán suān huà wù yán de xíng shì cún zài
A narcotic alkaloid, C18H21NO4, related to codeine, used as an analgesic and a sedative chiefly in the form of its hydrochloride salt.- wán jī běn xíng chéng de huáng suān yán。
sulfonate of alkyl benzene.- yī zhǒng duō jià de dàn zú fēi jīn shǔ yuán sù, tōng cháng jiàn yú wú jī lín suān yán yán shí zhōng huò zuò wéi yòu jī lín suān yán cún zài yú huó xì bāo zhōng, jí qí huó yuè, yòu duō zhǒng tóng sù yì xíng tǐ。
a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms.- kǔ xìng rén sù yī zhǒng táng gān, c20h27no11, tōng cháng chū xiàn zài zhí wù zhǒng zǐ、 qiáng wēi kē zhí wù de qí tā bù fēn zhōng, rú xìng、 táo、 kǔ xìng rén de hé zhōng, kě fēn jiě chéng shuǐ jiě suān 、 běn jiá quán hé pú táo táng
A glycoside, C20H27NO11, commonly found in seeds and other plant parts of many members of the rose family, such as kernels of the apricot, peach, and bitter almond, which breaks down into hydroeyanic acid, benzaldehyde, and glucose.- yán jiū rén yuán bào gào shuō, gǎn lǎn yóu sè lā tiáowèi liào fù hán yù fáng xīn zàng bìng suǒ bì xū de zhī fáng suān --α yà má suān 。
Researchers report that olive-oil salad dressings are full of alpha linolenic acid, an essential fatty acid that protects against heart disease!- tōng guò yǐn rù yī gè xì bāo huò yī gè bìng dú de dna( tuō yǎng hé táng hé suān ) ér gǎi biàn lìng yī gè xì bāo huò bìng sù
Alteration of a bacterial cell by introduction of DNA from another cell or from a virus.- kē luó bǎn yìn shuà fǎ yī zhǒng tōng guò zhàoxiàng zhì bǎn gōng yì zhì zào chū lái de yòng yú yìn shuà tú piàn huò wén zì de tú bǎn, jiāng yī céng jiāo zhì jì báopiàn zhì yú dǐ piàn zhī xià, yòng liú suān gè jiǎ shǐ zhī jiān yìng, rán hòu biàn kě zhí jiē yìn shuà
A photomechanically produced plate for pictures or type made by exposing a gelatin film under a negative, hardening it with chrome alum, and printing directly from it.
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