...不等的相互作用形式,在文献上称之为弱键(weak bonding) 、半键( semibonding) 、非键 (nonbonding) 作用和短接触( short contact) 等等。现在逐渐趋向于采用“Secondary Bonding”这一 名称,它是N.
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短暂接触 touch ; transitory contact
短时间接触容许浓度 STEL ; permissible concentration-short term exposure limit ; Short term exposure limit ; PEC-STEL
短期接触 short-term exposure
气固超短接触反应器 Gas-solids quick contact reactor
超短接触下行反应器 quick-contact downer
短期接触限值 STEL
短时间接触浓度 STEL ; short term exposure limit concentration
短路接触开关 shorting-contact switch
短时间接触允许浓度 STEL
因此，渣油催化裂化宜采用短接触时间和快速油气分离技术。
So the techniques of short contact time and quick speed oil gas separation in residua catalytic cracking should be taken.
本文提出了以甲醇作溶剂用荧光光谱分析煤短接触液化产品的方法。
In this paper the procedure and the result of analysing the coal liquid which was formed in short Contact time liquefaction by fluorescence spectroscopy were described.
冷模实验表明：多级错流短接触汽提方法能将汽提介质与催化剂的接触时间控制在两级挡板之内。
The cold model experimental results indicated that the MCSS degassing tower keeps the contact between catalyst and steam within two stages.
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