锅炉还可分成自然的或动力的通风类型.Boilers are also classed as natural or forced draft types.转子不能停在任意位置或动力不平衡.The rotor should not stop at any position or power imbalance.7.人工或动力执行机构:请包括所要求的技术细节.Manual or power actuators, please include ...
她已经恢复了平静, 拿柳条轻轻拍打和她并排的女孩子,照旧有说有笑的了.She had recovered her equanimity , and tapped her neighbour with her wand and talked as usual.并排的双线非常便于左右声道的识别和连接.Side - by - side construction for easy hookup of left and right channel...
Bob had to touch up the exterior paintwork where it was necessary.鲍勃要给所有外表需要修饰的地方上油漆.Covert action was deniable; a Pentagon program would not be ( Bob Woodward )偷偷摸摸的行动是可以否认的; 而五角大楼的行动却是有目共睹的 ( 鲍勃伍德沃德 )Bob died of a hear...
The pistons are graphite-coated to reduce friction.活塞上涂了一层石墨以减小摩擦力。the coefficient of friction摩擦系数When Joan returned to work, the friction between them increased.琼回来工作后, 他们之间的摩擦加剧了....
The tramp produced a stump of candle from his deep pockets.流浪汉从深口袋里掏出了一截蜡烛。The light from my candle threw his elongated shadow on the walls.我的烛光将他拉长的影子投射在墙上。After drawing the curtains, she lit a candle.拉上窗帘后，她点燃了蜡烛。...