查询词典 ball-pointpen

Different straight-ness measurement methods are described (straightedge, taut wire, laser interferometer, local squareness measurement, ball plate and ball beams) and their suitability for machine tool measurements of movements over 2 000 mm length discussed.

描述了不同的直线度测量方法(直尺法、钢丝绳法、激光干涉仪法、局部垂直度测量及球板和球杆法等)，并讨论了这些方法对测量移动长度超过2 000 mm的机床的适用性。

After reading "suet ball," the first impression that the call for suet ball injustice.

读完《羊脂球》的第一感觉，就是为羊脂球叫不平。

Firstly, the developing principles of the cylindrical internal helical gear are proposed through analyzing the movement and geometry requirements, which provides continuous contact between the mating gear surfaces. The tooth surface of the internal helical gear in the new gearing can be imagined as being generated by the normal section of the conjugated surface of the ball-tooth, moving along the radial projection of helix line of the tooth-root circle. Also, the proposed surface can be approximate tangent to the conjugated surface of the ball-tooth along a spacial curve.

首先，通过分析保证行星轮作螺环运动时与内斜齿轮实现连续啮合传动的运动和几何条件，提出了圆柱内斜齿轮齿面的两种形成原理：即由球齿运动包络曲面的法截面沿其齿根圆螺旋线在径向的投影进行拓展所形成的内齿面，以及与球齿运动包络曲面呈近似相切接触的等螺距齿面构成的内齿面。

In pigball, contestants chase a sweet-tasting soccer ball around an enclosed arena with their snouts, scoring when the ball goes into a goal.

在"猪球"项目中，参赛者须在封闭的赛场内，用"嘴"拱一只带有甜味的球，把球拱进球门的小猪就得分。

After searching briefly for his original ball he goes forward to play his provisional ball which is in a bush approximately 200 yards from the teeing ground.

在简单找了原始球之后，他就打了临时球，他把临时球打出大约200码，球进入了灌木丛。

A player plays from the teeing ground, searches briefly for his ball and then goes back and tees another ball.

球员在发球区发球，粗略找了一下球后便返回发球台架好另一球。

Q: A player hits his tee shot into heavy rough approximately 150 yards from the teeing ground and, since his ball may be lost outside a water hazard, he plays a provisional ball.

问：一名球员把球打到了距发球区大约150码的长草区，因为他的球可能丢在了水障碍之外，他打了一个临时球。

Q:A player hits his tee shot into heavy rough approximately 150 yards from the teeing ground and, since his ball may be lost outside a water hazard, he plays a provisional ball.

问：一名球员把球发出大约150码，球进入了长草区，因为他的球可能丢在了水障碍之外，他打了一个临时球。

A: If it is tennis ball, I can hold the ball.

答：如果是个网球，我能够抓住它。

It's quite unbelievable that an eye ball is the same size as a table tennis ball.

这是相当令人难以置信的那一球是眼睛同等大小的乒乓球。

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。