Metering valve
[化] 计量阀
🧩 词语组成解析
n. 测光模式；计量, 测量
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
Please hold on a moment.
请等会儿。
The offer isn't subject to prior sale.
本报盘以货物未售出为条件。
On arriving in England, they were taken to the Crystal Palace by train.
一到英国，火车就把他们送到了水晶宫。