疲劳地

Zr has harmful effect on the thermal fatigue property because it promotes the appearance of microporosity and formation of eutectic.

本文尝试研究微量元素对K17G合金的作用机理，并通过合理地控制和调整微量元素含量，在保持K17G合金原有良好力学性能的基础上，提高K17G合金的初熔温度和热疲劳性能，开发出新合金，以满足未来发动机不断改进的需要。

The scanning electron microscope , transmission electron microscope and ion microprobe are used to verify its mechanisms from different angles.

为了全面地证实腐蚀疲劳裂纹扩展机理，作者采用扫描电镜、透射电镜、离子探针等手段，从不同角度寻找多方面的证据。

It tires not nor does it boast of its power; but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help itspassage even when the wind is adverse.

它不知疲劳，也不夸耀自己的飞翔能力，然而它在空中十分自如，可以一直飞行6，000英里。飞向北方的筑有鸟巢的家乡以及从那里飞走，在飞行的过程中还要喂养已出窠的雏燕，甚至在顶风的时候也能够不费劲地穿过那似乎有助它迁栖的气流。

Medium 的含义是"介质",没有这种"介质"便达不到一定的目的 It tires not nor does it boast of its power; but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help itspassage even when the wind is adverse.

它不知疲劳，也不夸耀自己的飞翔能力，然而它在空中十分自如，可以一直飞行6，000英里。飞向北方的筑有鸟巢的家乡以及从那里飞走，在飞行的过程中还要喂养已出窠的雏燕，甚至在顶风的时候也能够不费劲地穿过那似乎有助它迁栖的气流。

Playing time before going to bed too long, over-excited; or frightened during the day, feelings of anxiety, so that the spirit can not be inhibited down.

疲劳过度。睡前玩的时间太长，兴奋过度；或白天受了惊吓，心情焦虑，使精神不能很好地被抑制下来。

I am lonely only when I am overtired, when I have worked too long without a break, when for the time being I feel empty and need filling up.

当我非常疲劳的时候，当我长时间的不间断地工作，当我空虚需要慰纪的时候，我感到孤独和寂寞。

Recuperation is not possible if there is constant activity, physical or mental; but this question of leisure can be settled in a friendly manner acceptable to all.

如果在体力上或智力上不停地工作，那么将难以消除疲劳。然而这项闲暇的问题，可以在大家都可能接受的友善方式下加以解决。

Conventional stereoscopic displays can cause viewers to experience eye fatigue and discomfort,as well as compromise image quality, because these displays require the viewers to unnaturally keep the eye focal length fixed at one distance while dynamically changing the convergence point of the left and right eyes to view objects at different distances.

传统的立体显示器需要观众人为地将眼睛的焦距固定在某一个距离，不断改变左、右眼收敛点来观察不同距离的物体，因此会造成眼疲劳和不适感，也降低了图像质量。

I.I.3 And, in addition to the Residuum, there are vast numbers of people both in town and country who are brought up with insufficient food, clothing, and house-room; whose education is broken off early in order that they may go to work for wages; who thenceforth are engaged during long hours in exhausting toil with imperfectly nourished bodies, and have therefore no chance of developing their higher mental faculties.

并且除了这些*民之外，在城市和乡村中，还有许多人是在缺乏衣、食、住所的情况下长成的；他们幼年就失学，以便出去工作，挣工钱度日；此后他们就以营养不足的身体长时间地做使人疲劳的工作，因此没有机会发展他们较高的智力。

The middle-aged people are normally the ridgepole of the society,who bear important responsibilities,while physically they tend to show signs of overtiredness as a result of long-term over-loaded work,continual work or study and lack of sleep.

中年人是社会的栋梁，他们肩负着历史的重任，而他们在身体上表现为长期超负荷劳累、持续不断地工作学习，或睡眠不足，疲劳得不到及时消除而导致过劳。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。