The earth will in time vaporize with its material and disperse.到那时,地球将与它上面的物体一起汽化而弥散.The wavelet transformation by Gabor wavelet is applied to the time - frequency analysis of disperse plate waves.基于小波变换和模态声发射理论,通过模态声发射试...
通过雌株末梢的纵切面所现出的几个瓶 状 的颈卵器, 这就是雌性生殖器官.A similar section through the female plant reveals several bottle - shape archegonia , the female reproductory organs.他们或者由雄株和雌株组成, 或者由雌株和两性个体 ( 雌金异株 ) 组成.They consist either male and ...
西格弗里德畏缩了,退避到墙根。Siegfried cringed and shrank against the wall.斧头伐木不畏缩,尽管斧柄木头做.The axe go to the wood where it borrow its helve.他一回想起那番经历就畏缩起来.He winces at the memory of that experience....
ABS resin is a kind of thermoplastic resin with excellent allround properties.ABS树脂是一种综合性能优异的热塑性树脂.Thermoplastic and thermosetting substances are called plastics.热塑塑料和热固的物质称为塑料.They manufacture the class of plastics know...
当前, 齿顶整圆弧滚刀广泛应用于重型汽车变速器齿轮的生产中.At present, full radius hob is used extensively for heavy transmission gear production.介绍了齿顶整圆弧滚刀的应用和设计.This paper introduces application and design of full radius hob on tooth tip.齿面 --- 节圆...