出料口底刀为双重闭合装置，刀口密封严密。

The hopper bottom sword is double close set, edge is pressurize rigorous.

youdao

到1982年底为止，我们队已钻了五口井。

By the end of 1982, our crew had drilled five Wells.

youdao

要了杯茶，杯子很小，三两口便见了底。

The cups were very small and the tea was too strong for us.

youdao

要了杯茶，杯子很小，三两口便见了底。

The cups were very small and the tea was too strong for us.

youdao