secondary contact

基本解释

In addition to optimizing the size of RBC process equipment, it also reduces the required size of the secondary clarifier and chlorine contact tank.
除了优化RBC工艺设备型号，预处理也可以减少二沉池和氯滤池的型号。
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Analyze interface condition of the two contact surfaces, secondary contact phenomenon, existence of meshing boundary line and undercut boundary line.
分析接触面间发生干涉的情况、二次接触现象、啮合界限线和根切界限线存在的情况。
We study the effect of secondary structural elements by considering much lower pair contact energy in secondary structure like elements with HP lattice model.
利用HP格点模型，我们考虑处在类二级结构元中的接触对具有更低的能量来研究二级结构对折叠的影响。

For example, in a standard phishing operation, an organized crime group might commission the creation of a scam web page and contact a secondary broker to get a list of thousands of email addresses.
FORBES: The Rise of Crime-Sourcing