安zhòngyīngguànyòngduǎnyù:
| - ān quán jì shù xùn liàn safety training
- ān quán bào jǐng qì safety alarm
- ān quán zhǐ shì dēng safety light
- ān quán 'àn niǔ safety switch
- ān quán 'àn niǔ scram button
- ān quán pái qì kǒu emergency vent
- ān quán chè emergency stop
- ān quán jiē dì xiàn protective earth
- ān quán kòng zhì biāo jì safety control mark
- ān quán kòng zhì diàn lù safety control circuit
- ān quán chè tuì ; shùn lì tuō shēn make good one's retreat
- ān quán cāo zuò yā lì safe operating pressure
- ān quán cāo zuò guī zé code of safe practice
- ān quán cāo zī xù safety procedure
- ān quán cāo zhuó suàn qì safe handling calculator
- ān quán shōu gē qī safe crop period
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