Welding flux backing
[化] 焊剂垫
🧩 词语组成解析
a. 焊的\\n[机] 熔接, 焊接, 锻接
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
🗣️ 情景例句
555-9470…and it's busy….
555-9470……还是忙音 ……
He has lived here for a year.
他在这儿住了一年。[持续到现在的行为]
In summer it is often too hot, and in winter it is too cold.
夏天常常太热，冬天又常常太冷。