In land animals, saliva contains mucus, and provides lubrication for food in the alimentary canal.陆上动物的唾液内有粘液, 并对消化道内的食物起着润滑作用.In metal lubrication two distinct regions are recognized: boundary and hydrodynamic.在金属的润滑作用中...
A hydroplane navigated over the lake.一架水上飞机从湖面上飞驰而过.The ship was navigated by the North Star.那只船靠北极星来导航.He navigated the plane through the clouds.他驾驶飞机穿越云层.Captain Cook safely navigated his ship without accident for 100 ...
位势方程在十八世纪关于引力的研究中已显露头角.The potential equation had figured in the eighteenth - century work on gravitation.引入随机正则函数和随机位势函数的概念.The concepts of random regular function and random potential function are introduced.三维薛丁格方程式: ...
He was rejoiced at so early an opportunity of distinguishing his faith in his new sect.他很高兴这么快就能有机会表明他新近才参加的教派的信仰.The basic gimmick was the distinguishing of one bank from the others.基本决窍是区分某一银行与其它银行的标志.Command of the mo...
洞口大半都淹没在湖里。Most of the mouth of the cave was submerged in the lake.湍急的水流奔涌过洞口。The water rushed through the holes with great rapidity.两艘船隆隆地从洞口开出，进入了开阔的水域。Both boats purred out of the cave mouth and into open water....