The low utilization efficiency has resulted from the adoption of some traditional Chinese irrigation methods.

利用效率低的原因是采用了中国一些传统的灌溉方式。

youdao

Water – improving the efficiency of irrigation systems.

提高灌溉系统的效率。

youdao

The actual water requirements differ according to plant, climate (most of the water withdrawn by plants is for cooling through evaporation) and the efficiency of irrigation.

实际的需水量根据植物种类，气候(植物吸收的大部分水用于进行蒸发降温)，和灌溉效率的不同而有所不同。

youdao

Syria will reach the limit of food self-sufficiency in 10-35 years, depending on the effectiveness of its measures to improve irrigation efficiency and agricultural yields, and to control population growth.

ECONOMIST: Letters