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- roof of coal roadway 煤巷顶板
- the roof of coal roadway 煤巷顶板
- Existing Problems of Coal Roadway Bolting Technology in Datong Coalmines Group Co. 煤巷锚杆支护技术在同煤集团应用中存在的问题。
- Poor machining quality of drillpipe of coal roadway drilling machine and the cause of rupture on case are analysed. 分析了煤矿用坑道钻机钻杆的加工质量问题和现场使用时产生断裂的原因。
- The stone made a dent in the roof of my car. 我的汽车顶让石头砸了个坑。
- On the roof of coal bed are consists of the mudstones in dark-gray or grizzle which will expand met water and wet air, with higher expansion stress and coefficient. 煤层顶板为深灰色和灰色泥岩，该岩石遇水和潮湿空气产生膨胀，膨胀应力和膨胀率大。
- The roof of our house is covered by shingles. 我家的屋顶是用木瓦铺的。
- The roof of the house pitched at a 45°angle. 屋顶倾斜四十五度。
- The roof of the old house caved in. 那栋旧房子的屋顶塌下了。
- The roof of the schoolhouse is covered with snow. 校舍的屋顶上覆盖着积雪。
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- We heard the rain spattering down on the roof of the hut. 我们听到雨滴滴答答打在小屋的顶上。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- The roof of that house caved in during the severe storm. 狂风暴雨中那房子的屋顶倒塌了下来。
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- The roof of the mine caved in as a result of the explosion. 由于发生爆炸，矿井顶部坍塌了。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
- The roof of the tunnel caved in (on the workmen). 隧道顶坍塌(压住工人).
- The country is short of known deposits of coal. 这个国家缺少已知的煤矿矿床。
- A shower of rocks and stones rattled on the roof of the dug-out. 一阵岩块和石子噼噼啪啪地打在掩蔽部的顶上。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
