Permutit ethods
[医] 人造浮石法(检尿氨)
🧩 词语组成解析
[机] 人造沸石
🗣️ 情景例句
I'm glad to help.
我很乐意帮忙。
And I hope you can have a good time tonight.
祝愿你们今晚过得愉快。
riding on its air cushion over a single rail, which it never touches,at speeds up to 300 m.p.h.----the possibilities appear unlimited.
靠气垫在单轨上行驶而不接触轨道，时速可达每小时300英里。气垫船的前途是不可限量的。