Circulation valve
[化] 循环阀
🧩 词语组成解析
circulation
[,sɝkjə'leʃən]
n. 流通，传播;血液循环;发行量;（某段时间的）社交活动;
circ 圆，环 + ul + ation 表示行为、情况、状态、过程、结果 → n. 流传,传播,发行;发行量;(体液的)循环,(水、空气等的)流通;(货币等的)流通
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
The crowd flocked around the speaker.
人群聚集在演讲人四周。
Before I eat dinner,I read the newspaper for a while.
在我吃晚饭以前，我花一会儿读报纸。
It can take as long as eight days to rig up rope ladders and to establish supply bases before a descent can be made into a very deep cave.
有时需要花费整整8天时间来搭起绳梯，建立供应基地，然后才能到一个很深的洞穴里。