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- This nail clipper has a suction base to secure it to a non porous surface and a magnifier to make nail clipping easier to see without having to bend right over. 此指甲剪附于塑胶板上，下有两个大吸盘，可将剪指甲器固定于桌上安全地使用。指甲剪上特别设计附有一个小型放大镜，方便视力不佳者使用。
- Flow characteristic of fluid in the porous matrix and the theoretical model of the porous bearings were reviewed. 概述了流体在多孔基体中的流动特性和多孔质含油轴承的理论计算模型。
- Lubrication of Finite Width and Random Thickness Porous Bearing 有限宽任意壁厚含油轴承润滑方程研究
- The Development of Theory Research on Porous Bearing 多孔质含油轴承的理论研究进展
- externally-pressurized gas-lubricated porous bearing 外压气体润滑孔隙轴承
- And, theoritical model of porous bearings and the numerical solution of the lubrication process in porous bearings were developed. Thus, the distributions of the pressure and film thickness with the new modified Reynolds equation were calculated out. 本文以含油轴承为研究对象,分析了含油轴承的理论模型、结构模型、失效形式及机理,并对含油轴承润滑的基本原理和数值计算方法进行了研究,进而推出了新的变型雷诺方程下的压力分布及膜厚分布。 主要内容包括:
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- Keywords macropore weak acid cation exchange resin;non porous moving bed adsorber;oil drilling waste;soften; 大孔弱酸性阳离子交换树脂;密实移动床;稠油污水;软化;
- Development of a dynamical load testing worktable for porous bearing 含油轴承动态负载摩擦学性能测试装置
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- Any of several tough, porous leather substitutes. 通气性强的塑料几种粗糙的多孔的皮革代用品
- The old veteran had a martial bearing. 那老兵具有威武的仪表。
- He added sand to the soil to make it more porous. 他往土里掺了些沙子以提高渗水性能。
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- I saw a tombstone bearing the date 1602. 我见到一块刻有1602年字样的墓碑。
- He's bearing up well against all his misfortunes. 他以坚强的意志对待他所有的不幸。
- I had had a few beers and was completely non compos mentis. 我喝了些啤酒就头昏脑胀了。
- Bearing male and female flowers. 具两性花的有雄性和雌性花的
- The evidence has no immediate bearing on the case. 该证据与本案无直接关系。
