Dipropyl sulfite
[化] 亚硫酸二丙酯
🧩 词语组成解析
[机] 二丙基
n. 亚硫酸盐\\n[化] 亚硫酸盐; 亚硫酸盐或酯、根
🗣️ 情景例句
I came home a little while ago.
我也是刚刚到家。
There was a big choice of shops in the small town.
这个小镇上有好多商店可供选择。
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。