Polybasic acid
[化] 多元酸
🧩 词语组成解析
a. 多元的, 多碱价的\\n[化] 多碱的; 多碱价的; 多元的; 多代的
🗣️ 情景例句
and be able to put more money down.
也就可以增加自备款的额度。
Blood will have blood.
血债要用血来还。
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。