旋转地

It has to be tail because it is like a giant block and tackle, and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom

井架必须很高，因为它像一个巨型滑轮组。我们必须把很大的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

It has to be tall because it is like a giant block and tackle ,and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are roated bu an engine at the top and are fitted with a cutting bit at the bottom.

井架必须很高，因为它像个巨型滑轮组。我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

In the bounding surface masonry model, the sliding yield surface is considered as isotropic hardening and rotating hardening bounding surface, and the masonry model is expanded from monotonic loading to complex loading.

把滑移屈服面看作为等向硬化和旋转硬化的边界面，从而合理地把砌块体模型从单调荷载推广到复杂荷载情况。。。

Therefore if thou shalt separate from thyself, that is, from thy understanding, whatever others do or say, and whatever thou hast done or said thyself, and whatever future things trouble thee because they may happen, and whatever in the body which envelops thee or in the breath, which is by nature associated with the body, is attached to thee independent of thy will, and whatever the external circumfluent vortex whirls round, so that the intellectual power exempt from the things of fate can live pure and free by itself, doing what is just and accepting what happens and saying the truth: if thou wilt separate, I say, from this ruling faculty the things which are attached to it by the impressions of sense, and the things of time to come and of time that is past, and wilt make thyself like Empedocles' sphere

因此，如果你是自己，也就是说使你的理智同这些事情分开－即不管别人做或说了什么，不管你自己做或说了什么，不管将来可能发生什么事情使你苦恼，不管在将你包裹的身体中，或者在天生与身体结合在一起的呼吸中，有什么东西违背你的意志而附着于你，不管那外部缠绕的事物旋涡是如何旋转，为了使免除了命运束缚的理智力自身能纯粹和自由地活动，那么去做正当的事，接受发生的事和诵出真理吧，我说，如果你使这种支配能力脱离开那些通过感官印象而附着于它的事物，脱离开那些未来的和过去的事物，你就将使自己像恩培多克勒的球体一样

The circumvolution exposal method to printing paper was brought forward in particular.

特别是提出了一种相纸旋转曝光方法，定性地测出了激光的脉冲光强随时间的变化规律。

This system transfers operation instructions formed from command centre to the operating rocket site by wireless communication , and realizes automatic azimuth and elevation circumvolution and automatic launch of the long range controlled rockets .

该系统将指挥中心形成的作业指令无线传递给作业火箭，实现了远程控制火箭的自动旋转和发射，较好地解决了火箭操作烦琐，参数设计不科学，作业记录不完整，指令传输慢等问题。

This paper adopts auto-threshold value technology which can select better threshold value. This paper puts forward rotating projection moment invariants which optimizes moment invariants and identifies conglutinate letters.

本文采用了自动阈值选择技术，使阈值的选择更合理；对不变矩进行了优化，首次提出了旋转投影不变矩方法，适合粘连字符地识别。

An inside conical surface at the lower end of the joint is designed to ensure the shaft swing freely within an angle range of 10°, thereby the axial bending stress caused by the deflection of the borehole can be eliminated effectively.

这种装置采用类似球形关节的旋转机构，消除了抽油杆柱上下往复运动产生的倒扣扭矩；在短节下端设计有10°的内圆锥表面，使转轴能够在10°范围内自由转动，从而有效地消除了由于井身弯曲而产生的轴向弯曲应力。

First, it is intrinsically a multiple view approach as all geometric information from the whole sequence is nicely summarized in the conics.

该课题的完成，极大地降低了原有算法的复杂度，并为分析所有基于单轴旋转的运动提供了新的思路和方法。

According to the Source attenuation model, Lambert′s cosine law of diffuse reflection and Phong specular reflection model, 2 equations used to calculate the opacity and intensity of every voxel in the volume data were obtained.

方法由源衰减模型、朗伯漫反射余弦定律和Phong镜面反射模型，推导出计算数据场中每一点的不透明度和明暗度的计算公式，通过旋转光源和视点，来自不同观察方向的感兴趣结构的体绘图被满意地生成。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失