Drip line is a type of hose with tiny holes in it.

滴灌管是一种带有小孔的软管。

We also use what's called drip line.

我们还使用所谓的滴灌线。

Every row has drip line to keep the dahlia plants watered.

每行都有滴水线， 以保持大丽花植物的水分。