main roof是什么意思

网络释义

用法例句

The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate.

本文将倾斜长壁仰斜、俯斜开采的老顶岩层视为倾斜弹性板。

The theoretical calculation of first weighting interval of main roof and the utilization of measured data of roof weighting interval in practice for improving the accuracy of its calculation are both important to ground pressure control.

老顶初次来压步距的理论计算以及利用实测来压步距资料来改善理论计算的来压步距精度是矿压管理中的重要工作。

On this paper the method of plate limit analysis is applied to the determination of two breakage lengths of main roof.

本文应用板的极限分析法求老顶的断裂步距,从而解决了按板模型周现有的方法不能计算老顶周期断裂步距的问题这种方法的另一个显著的优点是它不但适用于矩形采空区而且也适用于非矩形采空区。

This paper analyzes the influence of the regulation of the old roof pressure of the mining field on the roof fall accidents of the mining field, and puts forward some corresponding effective preventive measures.

分析了采场老顶来压规律及其对采场冒顶事故的影响,针对冒顶事故的发生提出有效的预防措施。

Break of main roof ahead of workface and ground pressure;

采场老顶岩梁的超前破断与矿山压力

Main roof first collapse law and measure of controlling roof in seam with approximate shallow depth

近浅埋煤层老顶初次垮落规律及控顶措施

The boss will not tolerate any contradiction.

老板不能容忍顶嘴。

The old fellow is going bald on top.

那位老兄正在秃顶。

Stop cheeking up your teacher!

不要顶撞你的老师!

The oldest of men carried on the business gravely.

那些顶老的老人们正在严肃地办理业务。

At last she reached the top of the ancient tower.

最后她终于到了这古老的塔顶。

Robert had the impudence to talk back to his teacher.

罗伯竟狂妄得跟老师顶嘴。

Father Christmas lands on top of each house at night.

在夜里，圣诞老人降临到每家房顶上。

Ruth was disciplined at school for talking back to the teacher.

路丝因为和老师顶嘴，受到了处分。

A dormer breaks the level roof.

老虎窗破坏了房屋平顶的完整性。

The old lady fell down in adoration before Buddhist images.

那老太太在佛像面前顶礼膜拜。

I quite agree with you, Mr. Tu," broke in Huei-fang. "Mr. Tseng is really horrible.

“可是杜少爷，曾家的老二就是顶讨人厌。”

The roof of the granny's hut came down during the night.

老大娘草屋的屋顶在夜间塌下来了。

The old couple lived at the top of the hill.

这对老年夫妇住在这个小山顶上。

By speaking up against her boss, she's put herself out on a limb.

顶撞了老板，她使自己处于危险境地。

The old man was puffing and blowing when got to the top of the hill.

那老人到达山顶时,喘息不止。

He is trying to shelter his boss from criticism.

他极力为老板顶住外界的批评.

He is no better than a shop-keeper.

他顶多不过是一个店老板罢了。