叶轮可用角钢制成.The vanes are made of structural angle iron.这种装置的运转情况与叶轮泵很相似.This device operates similarly to the vane pump.叶轮有开式 、 半闭式和闭式三种, 如图 2-2 所示.Impeller are open, and closed three - Banbi, as shown in Figure 2 - 2 ....
My friend lodges in my uncle's house.我朋友寄居在我叔叔家.In his neck lodges strength , And dismay leaps before him.伯41:22他颈项中存著劲力 、 他面前的都恐吓跻跳.One of these nights we must return the Lodges'visit.我们必须在近期的某个晚上回访洛奇夫妇....
他将失明的双眼转向他们，低声打了个招呼。He turned his sightless eyes their way and boomed out a greeting.颜色对于生来就双目失明的人是无法想像的.Colour is inconceivable to people born blind.失明的孩子在动作发展的这一方面往往比不失明的孩子更加被动。Blind children tend to be more passive in...
a pair of tongs一把夹剪She used tongs to put some more coal on the fire.她用火钳再夹一些煤放进炉子里.The waiter lifted rolls from a basket with a pair of silver tongs.侍者用一把银钳从篮子里夹起面包卷。...