Letdown drum
[化] 排放槽
🧩 词语组成解析
n. 减低, 减退, 松弛, 失望\\n[化] 调漆
drum
[drʌm]
n. 鼓;鼓状物;鼓声;石首鱼;
vt. 击鼓;连打;反复讲;鼓吹;
vi. 击鼓;连打;拍翅;
🗣️ 情景例句
He's going to be fine.
他不会有事了。
What time did you get to work yesterday morning?
你昨天早上什么时间上班？
the graphic record shows three waves arriving one after the other at short intervals.
曲线纪录就能显示出前后相间的这3种地震波。