Standard gas cylinder 标准气钢瓶
standard gas thermometer 标准气体温度计
multi-component standard gas 多元标准气体
ethane standard gas mixture 乙烷标准气体
Standard gas meter 标准煤气表
standard gas preparation system 标准气配制系统
Environmental monitoring standard gas 环保监测用标准气体
standard gas law 标准气体定律
standard gas measurement 折算成标准状态下天然气体积的测定法
It also began a programme of encouraging the upgrading of sub-standard gas water-heaters.
同时,又推行一项计划,劝谕使用不符合标准气体热水炉的用户改善热水炉装置。
It also began a programme of encouraging the upgrading of sub-standard gas water - heaters.
同时,又推行一项计划,劝谕使用不符合标准气体热水炉的用户改善热水炉装置。
This paper describes the performance of standard gas of Methane in Air for greenhouse measurement.
本文介绍了温室监测用空气中甲烷标准气体的性能。
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