Safety margin
[计] 安全余量, 安全系数\\n[化] 安全裕度
🧩 词语组成解析
margin
['mɑrdʒən]
n. 边缘，范围;极限;利润，盈余;（版心外）的空白;
vt. 留边;成为…的边;加边于，围绕;为…加旁注;
🗣️ 情景例句
Come in. Oh, Carl and David.
哦，是卡尔和大卫，请进。
His bad English is a bar to his getting a job.
他的英语很差，这是他找工作的一个障碍。
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。