The differences between the coal drawing face and non-coal drawing face are low stowing factor in the goaf, vigorous movement of roof, and high stress peak abutment pressure along the strike.
放顶煤工作面与非放顶煤工作面的区别是，采空区充填系数小，顶板岩层运动剧烈，走向方向超前支承应力峰值较大。
The purpose of the drawing is to show us that in the face of seemingly insurmountable challenges or predicament, possessing self-confidence is of utmost significance.
这幅漫画的目的是告诉我们在看似不可克服的挑战与困境面前，最重要的是拥有自信。
When Mr Jones got back he immediately went to sleep on the drawing-room sofa with the News of the World over his face, so that when evening came the animals were still unfed.
而琼斯先生回来后，马上就去画室沙发上睡觉，脸上盖着《世界新闻》。于是，动物们直到晚上也没有吃东西。
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