水利的英文：
water conservancy
irrigation works

参考例句：

hydropower;Hydroelectric power
水利发电

optimization of water project operation
水利调度优化技术

A simple plain talk on irrigation
刍言水利

hydraulic engineering geological exploratory survey
水利工程地质勘察测量

Irrigation is closely allied to agriculture
水利与农业关系密切。

Overview on Development of Irrigation Industry Informatization in 2003-2004
2003-2004年水利行业信息化发展概况

Water industry chiefs were rapped yesterday for failing their customers.
昨天，水利行业的头头们因为怠慢客户而受到批评。

"The controlled use and systematic protection of natural resources, such as forests, soil, and water systems."
对森林、土壤及水利系统等自然资源的有节制的使用及系统的保护.

Lin was also a competent poet, a painter, an irrigation expert
林散之还长于诗画，并且是一位水利方面的专家

Today, the Chinese are gradually bringing to fruition their hopes of harnessing the mighty Yangtse
现在，中国人民开发长江水利的宏图，正在逐步变成现实。

water是什么意思：
n. 水；雨水；海水；海域
v. 给…浇水；供以水；加水；流泪；流口水

In smooth water
进入顺境

Is the water on or off?
自来水龙头开着还是关着？

Water Skiing is a surface water sport.
滑水是一项水面运动。

conservancy是什么意思：
n. 保存,保护,管理

conserve momentum
使动量守恒

Conservation is of the utmost importance.
保护自然资源至关重要。

We are not creatures of the Conservative government.
我们不是保守派政府的傀儡。

irrigation是什么意思：
n. 灌溉；冲洗（法）

The rotary agitator irrigated him.
旋转的鼓动者可灌溉的他。

The farmer is irrigating in his field.
那个农夫正在田里灌溉。

The terrace channels are convenient for irrigation.
梯田的沟渠便于灌溉。