roof fall是什么意思,roof fall的意思翻译、用法、同义词、例句
常用词典
塌顶
例句
Roof fall in mines is one of the severe disasters in mining operation.
矿山冒顶是矿山生产过程中严重灾害之一。
No rules is no game. 14: We must try to prevent the roof fall down I wanted to know what it meant to be a star.
没有规则就没有游戏。十四:我们必需设法避免房顶塌上去我曾想知道当一个明星意味着什么。
Defend is difficult since its stability is bad, often bring face roof fall, the roof management is very difficult.
由于其稳定性差、维护困难,经常造成工作面顶板冒落,给顶板管理带来了很大困难。
Defend is difficult since its stability is bad. It often brings face to roof fall. The roof management is very difficult.
由于其稳定性差、维护困难,经常造成工作面顶板冒落,给顶板管理带来了很大困难。
The II3123 face is a light type caving face of three-soft coal seam. the roof is cracked, sloughing and roof fall often occur.
前言: 石台煤矿II3123工作面为“三软”煤层轻放工作面,顶板破碎易掉,片帮、冒顶时常发生。
网络扩展资料
屋顶
1. roof
- 解释:指房屋或建筑物的顶部结构,用来保护内部免受天气和其他自然因素的影响。
- 例句:
- The roof of the house is made of tiles.(房屋的屋顶是由瓦片制成的。)
- The rain is leaking through the roof.(雨水从屋顶漏进来了。)
- 用法:roof常用作名词,也可以用作动词。常见的动词短语有roof over,意为“在……上面盖屋顶”,例如:
- We need to roof over the patio before winter comes.(在冬季来临之前,我们需要在露台上盖一层屋顶。)
- 近义词:ceiling(天花板)、top(顶部)
落下
1. fall
- 解释:指物体从上往下掉落或下降的过程,也可以表示时间、价格等的下降。
- 例句:
- The leaves fall from the trees in autumn.(秋天树叶从树上落下来。)
- The stock market fell sharply yesterday.(股市昨天急剧下跌。)
- 用法:fall常用作动词,也可以用作名词。作名词时,通常表示“瀑布、跌落、下降”的意思,例如:
- Niagara Falls is a famous tourist attraction in Canada.(尼亚加拉大瀑布是加拿大著名的旅游景点。)
- 近义词:drop(下降)、descend(下降)、plunge(暴跌)
- 反义词:rise(上升)、ascend(上升)