Backing vacuum
[化] 前级真空
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
🗣️ 情景例句
With pleasure. Now we can offer Optical Mark Readers of models.
很愿意。目前我们能提供光学记录阅读器的模型。
Which one of those men is Mr. Taylor?
那些人中泰勒先生是哪个？
Then wait until the fire is out.
然后，等火熄灭。