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当发生短路故障时,空气开关内部如何动作?

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Completethefollowingsentenceswiththewordsgivenbelow.Changetheformifnecessary.Capacityaffectionatehuddlebundledemonstratewisekingborestar1.Wecollecteda(n)_____________ofoldclothestogivetopoorpeople.2.Astyleconsultantwill______________howtodresstoimpress.3.Somepeoplehaveagreater_____________forlearningthanothers.4.Thecoldwindmadetheboy_____________insidehiscoat.5.Hepattedher_____________onthehead.6.Therecordstartedtheyoungsingerontheroadto_____________.7.Localpeoplearequestioningthe_____________ofspendingsomuchmoneyonthenewroad.8.Aftertheoldkingdied,hissonruledoverthe_____________.9.Listeningtomusiccanrelievethe_____________ofrunning.

圆锥齿轮的轴向力方向()

A. 大端指向小端
B. 小端指向大端
C. 向上
D. 向下

对于直径很小的钢制圆柱齿轮,若齿根圆到键槽底部的距离为(),做成齿轮轴。

A. <2mt
B. <2ma
C. <3mt
D. <3ma

齿轮采用浸油润滑时,油池中的油量应保持齿轮顶圆距离箱底不小于(),避免搅起箱底的杂质。

A. 小于30~50mm
B. 大于30~50mm
C. 小于20~50mm
D. 大于20~50mm

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