...-C4H10/ AIR 验证浓度50%LEL O2/N2 验证浓度17~18%O2 H2S/N2 验证浓度25ppmH2S CO/N2 验证浓度50ppmCO 学系统 (Chemical System) 气体侦测器 AIR 验证浓度20.8%O2 光学系统 (Photo System) 照度计 500lx,700lx1000lx,1300lx,1500lx 校正五点 声量系统 (Voice ...
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aqueous chemical system 水化学系统 ; 液体化学体系
fixed dry chemical system 固定式干粉灭火系统
Chemical System Engineering 化工系统工程 ; 化学系统工程
Chemical System and Optimization 化工系统与优化
dynamic chemical system 动态化学体系
mechano-chemical system 化学动力体系
immuno-chemical system 以免疫化学系统
RO CHEMICAL SYSTEM 反渗透设备加药系统
Broadly speaking, there are two ways of storing electrical energy in a chemical system.
广义上讲,有两种途径在一套化学系统中储存电能。
If we can get a self-propagating chemical system that can evolve, yeah, I'd call that life.
如果我们能够得到可以进化的自蔓延化学体系,那么是的,我称其为生命。
For astrobiologists, life is defined as a chemical system that undergoes Darwinian evolution.
对于天体生物学家来说,生命是作为化学系统来定义的,这符合达尔文的进化论。
But in an era of plastic explosives and advanced chemical compounds, that system has proved lacking.
VOA: standard.2009.12.30
Don't worry about how they work in the immune system, but what if you could manufacture antibodies then you could make a chemical, an antibody, that is capable of binding to a specific other chemical and you could use that for things.
别管它们在免疫系统内是怎么工作的,只要考虑能不能制造抗体,那么假设你能制造这种化学物质 抗体,抗体又能够同其他特别的化学物质结合,你就可以让抗体为我所用
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