Seal housing
[化] 密封壳体
🧩 词语组成解析
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
housing
['hauziŋ]
n. 房屋;供给住宅;掩护;外罩;
🗣️ 情景例句
on the telephone for me, please.
请替我拨电话。
In time of peace prepare for war.
居安思危。
What is needed in the case of noise is a study of large numbers of people living under noisy conditions,
对于噪音问题，需要对大量生活在噪音中的人进行研究，