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
He should just about get by in the exam.
他这次考试还能勉强及格。
He learns French every day.
他每天都学法语。
Education, with its cycles of instruction so carefully worked out,
教育，以其教学周期如此精心地安排，