Cogasin
(水煤气)合成油
🗣️ 情景例句
often took us somewhere in the city on the weekends.
经常在周末带我们去城市的一些地方。
I hesitate to ask you, but will you lend me some money?
也许我不该问你，你能借我一些钱吗？
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。