However, he realized the air of empty - headed heartiness might also mask a shrewd mind.但他知道,盲目的热情可能使伶俐的头脑发昏.There was in him the heartiness and intolerant joviality of the prosperous farmer.在他身上有种生意昌隆的农场主常常表现出的春风得意欢天喜地的...
The spade and fork have longer shafts, providing better leverage.锹和耙的手柄较长，可发挥较好的杠杆作用。He sank the spade into the ground, and went at it.他把铁锹插到地里，开始卖力地干了起来。The spade sank into a clump of overgrown bushes.铲子插入了一丛长势旺盛的灌木丛。...
Shear force is interrelating with width and thickness of plate and obliquity of knife - edge.斜刃剪切时,剪切力的大小与板料的宽度、厚度及斜刃倾角有关.Abstract: Shear force is interrelating with width and thickness of plate and obliquity of knife - ...