位错一般分为两种形式，螺形和线形位错。其术语恰当地表征了它们的形状。
Two general categories of dislocations are spiral and line, the terms being aptly descriptive of their shape.
右旋的软体动物的螺形外壳上的螺线顺时针螺旋即顶点向上，面对观察者时，螺线向。
Of or relating to a gastropod shell that coils clockwise and has its aperture to the right when facing the observer with the apex upward.
由此导出全纯映照本身的一些几何性质，并得到星形映照和螺形映照的充分判别条件。
Geometry quality for these mappings can be obtained from these inqualities, and some sufficiency conditions for starlike mappings and spirallike mappings are given.
任一种海栖软体动物，如滨螺，长有螺旋形的壳。
Any of various Marine gastropods, such as a periwinkle, having a spiral shell.
不锈钢螺栓，螺柱型，六角形驱动套节。
本实用新型一种环箍是由箍带、锁紧螺母等构成，其特点是所述的锁紧螺母的钢丝螺套有一至多圈呈多边形结构。
After the wire thread insert of the hoop of the utility model is installed in the nut, the elastic deformation generated from the radial of the wire thread insert is used to lock the screw.
限位部的形状与相应的突出部的形 状相对应。本发明的防磨结构组件具有多块耐磨刚玉陶瓷块、金属衬板、防震垫、内侧 金属螺柱、金属螺帽和刚玉陶瓷塞。
The wear resistant corundum ceramic block includes integral main body, protuberant part, limiting part and connecting holes, and the limiting part has shape corresponding to the protuberant part.
直形壳鹦鹉螺类化石产出状态的研究等表明三道坎组古流向是自北而南的。
Study of the attitudes of the fossil orthocone nautiloids indicate that the paleocurrents were from north to south during the deposition of the Sandaokan Formation.
直形壳鹦鹉螺类化石产出状态的研究等表明三道坎组古流向是自北而南的。
Study of the attitudes of the fossil orthocone nautiloids indicate that the paleocurrents were from north to south during the deposition of the Sandaokan Formation.
应用推荐