It was a hopeless task because each of the flies was about the size of a winged bottle top and all she had was a table tennis bat.

那是毫無希望的任務，因為每只蒼蠅都有長翅膀的瓶蓋大小，而她的武器不過是只乒乓球拍。

The bottle top has been screwed on squint.

瓶蓋兒沒擰正.

I've lost the bottle top for my medicine again.

我把藥瓶的瓶蓋兒弄丟了.

You can use a large plastic bottle whose top was cut off.

你可以使用一個瓶頸被砍掉的大塑料瓶。

The utility model relates to a medicine bottle top.

本實用新型為一種藥瓶的瓶蓋。

The bottle-top has been screwed on squint.

瓶蓋兒已經被擰歪了.

Present situation of bottle top producing machines in China, and the mechanism and working principle of the automatic roll forming machine for the production of anti-counterfeit bottle tops were introduced.

本文簡單介紹了國內瓶蓋加工機械的現狀和筆者研制的防盜蓋自動滾花機的結構及原理。