a block of coal called a pillar is left unmined between the two working places for ground support.求翻译

a block of coal called a pillar is left unmined between the two working places for ground support.求翻译 Westerners sometimes call it the cheese of Asia ,because it looks like a block of cheese a 4-horse load of coal the roof of a block of Regarding Drawings of Coal the roof of a block of flats这里的block作什么解释? on the roof of a block of flats 可以改成on the roof of a flats' block吗 the use of coal and Is there a f( ) in front of block coal dust is explosive.solids lumps of coal are not.a) why is coal dust explosive whereas solids coal is notb)what conditions in a coal mine lead to explosions?c)what safety precautions need to be taken in coal mines to avoid explosions?d)what other block of flats block model of learning Do you often__your gandparents? A call off B call at C call on D call of Block A has a mass of 3 kg and Block B has a mass of 5 kg.Just before colliding,Block A has a speed of 4 m/s and Block B is at rest(0m/s).After the collision,Block B has a speed of 3m/s in the same direction that Block A was initially.What is the spe 英语 词组 a block of apartment 和 a office block中文 解释、***（一样吗?）***（block取“ 大楼 大厦 ”之意）(不要词霸 之类的翻译 ) We must___oil with coal as a fuel.A.take the place of B.replace Three million tons of coal ___ exploited every year.A is B are Of course,w_ a long time,China will continue using the coal.