Piston compressor
[化] 往复式压缩机; 活塞式压缩机
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
compressor
[[kəm'presə]]
n. 压缩物, 压缩机, 压肌\\n[化] 压缩机
🗣️ 情景例句
Was it serious?
病得很重吗？
The efficiency is greatly raised,and the intensity of labor is decreased.
工作效率大大地提高了，而劳动强度却降低了。
They were in fashion last year and the year before last.But they're not in fashion this year.
这鞋在去年和前年时兴，而今年已不流行了。