A.旋轉(zhuǎn)方向 B.旋轉(zhuǎn)反方向 C.順時(shí)針?lè)较?br /> D.逆時(shí)針?lè)较?/p>
A.隨時(shí)對(duì)風(fēng)機(jī)進(jìn)行檢修和維護(hù) B.按期、定人對(duì)風(fēng)機(jī)進(jìn)行檢修和維護(hù) C.隨時(shí)對(duì)風(fēng)機(jī)抽查檢修和維護(hù) D.不按時(shí)定人對(duì)風(fēng)機(jī)進(jìn)行檢修和維護(hù)
A.過(guò)多也能使軸承溫度升高 B.越多越能使軸承溫度正常 C.過(guò)多也能使軸承溫度不穩(wěn)定 D.越少越能使軸承溫度正常