Interrenin
[医] [肾上腺]皮质激素(旧名)
🗣️ 情景例句
Why is that necessary?
为什么有此必要
How much wool did you want to order?
你要订购多少羊毛？
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。