The pumps must be of the low shear Archimedes screw type.泵必须是低剪切力的阿基米德螺旋式泵.These results parallel Archimedes'geometric theorems.这些结果可与阿基米德斯的几何定理相比.Archimedes flourished in the 3 rd century B.C.阿基米德活跃于公元前三世纪;阿基米德是公元前...
In order to represent Archimedes helix with control polygon, we construct Bernstein - like basis.为了用控制多边形的方法表示阿基米德螺线, 本文构造了拟Bernstein基.These results parallel Archimedes'geometric theorems.这些结果可与阿基米德斯的几何定理相比.The patt...
Objectives : To study hospital infection in agedness ward.目的: 研究老年病房医院感染的现状和控制对策.Drinking tea helps prevent from agedness kind cataract.饮茶可以预防老年性白内障.In our country's agedness process, the problem of how to provide f...
The autumn, when autumn rain unbroken, when algidity raids a person, he came.秋天, 当秋雨绵绵, 寒气袭人的时候, 他来了.We've had ten days of almost unbroken sunshine...我们这儿连续10天差不多都是阳光明媚。...an unbroken run of 38 match wins...38场连胜You...
这位白发的农民默想着他过去所受的苦难.The hoary peasant mused over his past sufferings.白发的产生部分原因是褪黑素减少或完全停止产生褪黑素.Gray hair results when, for some reason, the production of melanin is reduced, or stops completely....
一只狮蚁的幼虫蜷曲着努力爬行.A doodlebug curls in his effort to get there.其他自然防治火蚁的途径也是可取的.Other nature natural ways fire fight the fire ants are also possible.研究者们在佛罗里达发现168个火蚁的巢穴.The researchers observed 168 nests of imported fire a...