Phosphate (protective)coating
[化] 磷酸盐保护膜
🧩 词语组成解析
phosphate
['fɔsfeit]
n. 磷酸盐;（含有少量磷酸的）汽水;
🗣️ 情景例句
It will take less than 5 minutes to check out.
退房最多只需5分钟。
There are good chances of promotion in this firm.
在这个企业里有很好的提升机会。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。