Magnetic pole strength
[电] 磁极强度
🧩 词语组成解析
pole
[pol]
n. [物]极点，顶点;地极;杆;两极端;
vt.& vi. 用篙撑船，摆船;
vt. [航海] 用一根杆来推动;以杆推进;以杆支撑（植物）;用杆子击打、戳、或搅拌;
vi. 用滑雪杖加速;
🗣️ 情景例句
A credit card is very useful when you go traveling.
当然旅游的时候，信用卡很有用。
Where were you yesterday afternoon?
你昨天下午在哪儿？
The students are going to take the test in two days' time.
学生们准备在两天后就接受测验。