zhòngyīngguànyòngduǎnyù:
  •    héng jià   Pratt truss
  •    luò jìn yòng qiān jīn   Plate-Loy
  •    lǎng mài liú   Prandtl-Meyer flow
  •    lǎng -- luó guān   prandtl- Reuss relation
  •    lín   Prinomide
  •    zhá bié dīng   Poiret twill
  •    luó shí shì yàn   Proctor compaction test
  •    luó bèn shí shì yàn   Proctor compaction test
  •    luó xiàn   Proctor curve
  •    tōng shuǐ , lán shuǐ , guī suān yán shuǐ   Portland cement
  •    tōng lán shuǐ   ordinary portland cement
  • adj.   biàn de , xiǎn zhù diǎn de , néng shì yìng shū huán jìng de   generalized
  •   jīng   crystal voltmeter
  •   jīng zhēn kōng guǎn   crystal vacuum tube voltmeter
  •   jīng guǎn xìng xiàn shì   transistor characteristics curve tracer
  •   jīng guǎn xìng xiàn shì   transistor curve tracer