...负压间隙; 优化设计; 准干式深孔加工 [gap=1226]Key words: negative-pressure chip removing; injection angle; negative pressure gap; optimization design; near-dry deep-hole processing ..
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To maximize energy output, the tapered towers funnel wind between them, creating a negative pressure zone behind the buildings that draws more air through the gap.
为最大限度发电，在两塔间形成了漏斗形的聚风口，使得在大厦后面形成一个负压区，有利于通过豁口吸入更多空气。
The ball screw can be pre pressed, because the pre pressure can make the axial gap reach negative value, and then get higher rigidity.
滚珠丝杠可以加预压，由于预压力可使轴向间隙达到负值，进而得到较高的刚性。
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