所谓机理，是指某种机制的调节原理，信息在循环经济中的作用机理就是指信息在循环经济中发挥调节作用的过程与调节原理。
The mechanism is some principle for the adjusting of something, and the mechanism of information in circular economy is the process and principle that information ACTS on the circular economy.
将测压原理拓展应用到均匀送、排风管路的设计中，并探析了这种管路的作用机理及计算方法。
Applies the pressure measuring principle to the ducts for even air supply and exhaust, and analyses the function mechanism of such ducts and their application calculation.
阐述了难钻进地层用新型金刚石钻头的结构、制造特点，射流式钻具的原理、类型，以及防塌型稀释剂的作用机理。
The structure and manufacture of new type of bits, working principle and types of fluidic drilling tools, action mechanism of anti-cave-in thinners, for difficult formation drilling were discussed.
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