查询词典 ball-pointpen

From the top of the tower Galileo dropped a light ball and a heavy ball at exactly the same time.

质子电荷飞域的边界并不象弹子球的表面那样分明。

It would be helpful if you put a piece of bowlers tape on the center of your ball (between the finger holes and thumb hole) so that you can watch your ball roll.

为了方便观测球在球道上的运动状态，你可以在球的三孔中心处贴上一片胶布。

Lift is not the answer. In my opinion the answer is in your wrist. The bowlers that rev the ball have a greater angle change in their wrist during the thumb exiting the ball.

提拉并不是解决之道，我觉得问题在於手腕的运用，高转速的球员在姆指脱离球孔以后，手腕会作出相当程度的角度变化。

Most players who want to create greater revolutions on the ball usually overturn the ball with the thumb. But, it must be noted that unusually high revs are not dependent on raw power and speed. For example, Bob Vespi, now retired, generated great revolutions (six revs before rolling past arrows; taped by Don Johnson), yet Vepsi threw one of the slowest deliveries on the tour.

很多球员为了想得到较高的转速，姆指往往都转过了头，还有，快的转速并不纯然来自於手给予球的提拉力道及速度，举个例来说： Don Johnson 曾录下己退休球员 Bob Vespi 的掷球过程，他的球速在巡回赛的职业球员中算是超级慢的，但是他的球在还没到达箭头前却已经转了6圈。

Deep groove bearings, double row self-aligning ball bearings, cylindrical roller bearings, double row self-aligning roller bearings, needle roller bearings, angular contact bearings, Tapered Roller Bearings , plane thrust ball bearings, outer spherical surface bearings, linear bearings, joint bearings, self-lubricating bearings, ceramic bearings, stainless steel bearings.

深沟轴承、双列调心球轴承，圆柱滚子轴承、双列调心滚子轴承、滚针轴承、角接触轴承、圆锥滚子轴承，平面推力球轴承、外球面轴承、直线轴承、关节轴承、自润滑轴承、陶瓷轴承、不锈钢轴承。

Deep groove bearings, double row self-aligning ball bearings, cylindrical roller bearings, double row self-aligning roller bearings, needle roller bearings, angular contact bearings , Tapered Roller Bearings, Plane Thrust Ball Bearings, outer spherical surface bearings, linear bearings, joint bearings, self-lubricating bearings, ceramic bearings, stainless steel bearings and other products, complete specifications, a wide variety.

深沟轴承、双列调心球轴承，圆柱滚子轴承、双列调心滚子轴承、滚针轴承、角接触轴承、圆锥滚子轴承，平面推力球轴承、外球面轴承、直线轴承、关节轴承、自润滑轴承、陶瓷轴承、不锈钢轴承等产品，规格齐全，品种繁多。

Ltd. onbearing miniature bearings are professional agents, the main products have EZO NMB NSK IJK JAPAN diameter 1-10mm, outer diameter less than 60mm Metric, Imperial, flange series bearings, stainless steel bearings, plane thrust ball bearings and ceramic ball various types of bearings, such as miniature bearings.

上海普力轴承有限公司是微型轴承专业代理商，主要产品有日本EZO NMB NSK IJK 内径1－10mm、外径60mm以下的公制、英制、法兰系列轴承，不锈钢轴承，平面推力球轴承和陶瓷球轴承等各类微型轴承。

The company owns an advanced numerically controlled production line, and could provide several standard products such as single-row ball slewing bearing, cross roller slewing bearing, double-row ball slewing bearing, three-row roller slewing bearing, according to Standard "JG/T66-1999","JG/T67-1999","JG/T68-1999" and "JB/T2300-1999", and also could provide non-standard products according to the requirements of customers.

项目介绍（简介、技术特点、应用范围、市场前景、效益分析及对投资者要求。500字以内）回转支承产品结构有单排球式、双排球式、三排柱式、交叉滚柱式四大系列，可以按国家建筑机械行业标准《JG／T66—1999》、《JG／T67—1999》、《JG／T68-—1999》和机械行业标准《JB／T2300—1999》提供系列产品，同时也可以按照客户的要求来设计、制造非标准回转支承产品。

The slewing bearing can be divided into four-point conatct ball slewing ring, double-row angular thrust ball slewing bearing, crossed cylindrical roller slewing bearing, crossed tapered roller slewing bearing and three-row cylindrical combined roller slewing bearing according to their different structural styles.

转盘轴承根据不同的结构型式可以分为四点接触球转盘轴承、双排角接触推力球转盘轴承、交叉圆柱滚子轴承、交叉圆锥滚子轴承和三排圆柱滚子组合转盘轴承等不同的结构型式；上述各类轴承按其是否带齿及齿轮的分布部位又分为无齿式、外齿式或内齿式等不同结构。

The slewing bearing can be divided into four-point conatct ball slewing ring, double-row angular thrust ball slewing bearing, crossed cylindrical roller slewing bearing, crossed tapered roller slewing bearing and three-row cylindrical combined roller slewing bearing according to their different structural

转盘轴承根据不同的结构型式可以分为四点接触球转盘轴承、双排角接触推力球转盘轴承、交叉圆柱滚子轴承、交叉圆锥滚子轴承和三排圆柱滚子组合转盘轴承等不同的结构型式；上述各类轴承按其是否带齿及齿轮的分布部位又分为无齿式、外齿式或内齿式等不同结构。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。