用“underground irrigation”造句大全，underground irrigation造句

Another interesting thing to see at Turpan is the underground irrigation system known as karez or kan'er'jing in Chinese.

There are other reasons why the underground irrigation system is better for tomatoes. Underground system leaves the surface soil dry.

an expert on farmland irrigation says that underground irrigation is the best way to water crops. It puts water where it is most needed at the roots.