Ld converter
[机] LD转炉
🧩 词语组成解析
致死剂量
converter
[kən'vɜ:tə(r)]
n. [自]变换器;换流器，变压器，变频器;[冶]炼钢炉，吹风转炉;使转变[改变信仰]的人;
🗣️ 情景例句
I'll go upstairs and stay with him until he falls asleep again.
我上楼去陪他， 直到他又睡着。
What do economists say about the present crisis?
经济学家们对于现在的危机做何说法？
Excuse me, Jim. Who's that man?
吉姆，那个人是谁？