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- The valve is widely applied in building material, metallurgy, mining, carbon coal and electric power industries etc and it is the ideal antifriction switching equipment of transportation system.? 普遍适用于建材、冶金、矿山、煤炭、电力等行业，是输送系统中理想的耐磨切换设备。
- Coal is carbonized and lithifyied vegetation. 煤由植物碳化及石化所成。
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- I make a carbon copy of my documents. 我用复写纸复写文件。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- Soft drinks contain carbon dioxide. 软饮料中含有二氧化碳。
- I have some carbon paper somewhere or other. 我记得我在什么地方放有复写纸。
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- We have enough coal to see the winter out. 我们有足够的煤过冬。
- They eked out their coal by collecting firewood. 他们拣拾木柴以补充煤的不足。
- She's a carbon copy of her sister. 她跟她姐姐一模一样。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
- Pile on more coal the fire is going out. 火快灭了，再加上些煤。
- What can we do with the bituminous coal? 这些烟煤可以用来做什么？
- A copy made by using carbon paper. 复写本，副本用复写纸复印的一份
- A coal fell from the fire and burned the mat. 一块煤炭从火中掉出来，烧坏了地席。
