管道的等量长度中的摩擦损失即构成弯管中的压力损失.Friction losses in the equivalent lengths of ducts constitute the pressure loss in the elbow.对小半径弯管国产化的可行性,作了技术论证.The feasibilities of small - radius pipe - bender made in china are demonstrated ...
其中两人下车鼓捣引擎。Two of them got out to fiddle around with the engine.治安人员硬把那些人拉下车。The vigilantes dragged the men out of the vehicles.他想让车上的乘客下车。He wanted the occupants of the vehicle to get out....
暴风雪夹着大团的积雪吹过湖面。A blizzard was blasting great drifts of snow across the lake.暴风雪今天袭击了西部地区，导致气温骤降。A snowstorm hit the West today, bringing with it frigid temperatures.他拉开帐篷的门帘，大步走进暴风雪中。He drew back the tent flap and strode...
黑人总爱惹事这一观念是种族主义论断的核心。The notion that blacks comprise a problem is at the core of racist reasoning.这一论断太牵强,不能使他们拥有起诉权.This claim was too speculative to provide them with standing.这个奇怪的论断引起了欢声大笑.This extraordinary assertio...
他那本带有精美插图的书见证了他对大学的热爱。His beautifully illustrated book well attested his love of the university.他们最终来到一扇雕刻精美的对开门前。Eventually they reached a pair of ornately carved doors.他刚写完一本书，插图精美，内容也并不艰涩。He's just written a book...
它有一种不寻常的特性,能在基因组内来回移动,也称为转位.They have the unusual property of being able to move around or transpose.并在此基础上设计出了一种新型的球锥滚子弧面凸轮转位工作台.And a new type sphere - conical roller and globoid cam graduator is designed.心电图: 窦性心律不齐, ...
The bright plumage of many male birds has evolved to attract females.很多雄鸟进化出鲜艳的羽毛是为了吸引雌鸟。The idea evolved from a drawing I discovered in the attic.这种想法是从我在阁楼里发现的一幅画得到启发的。Man was evolved from an ancestor that was probably...