circulation gas meaning in English

循环气

Application of programmable regulating controller in circulation gas compressor
可编程序控制器在循环压缩机中的应用
A th - 1025 thoron source made in pylon company of canada was adopted . thoron gas is mixed with circulation gas before they are input into the thoron accumulation box . the thoron level in the thoron accumulation box can be adjusted by changing the gas flow rate through the thoron source , or adding different volume of delay boxes in source input circuit , and me
简易(气土)室采用加拿大pylon公司生产的th - 1025型流气式固体(气土)源， (气土)进入积累箱之前先与循环气流混合，积累箱中的(气土)浓度可以通过改变流经(气土)源的气流流率或在充源回路加不同体积的延迟瓶加以调节。