Nitrocellulose filter
[建] 硝基纤维过滤膜
🏥 医学释义
硝化纤维素滤器
🧩 词语组成解析
n. 硝化纤维\\n[化] 硝酸纤维素
filter
['fɪltɚ]
n. 滤波器;滤光器;滤色镜;[化] 过滤器;
vi. 过滤;透过;渗透;
vt. 过滤;滤除;
🗣️ 情景例句
What happened?
发生了什么事？
He must needs go whom the devil drives.
势在必行。
No, more, about 130 years ago. Most of the slave owners were rich farmers who lived in the south. They wanted to keep their slaves.
不，还要早，大约130年前。大多数奴隶主都是住在南方的富有的农场主。他们想保留自己的奴隶。