渠道挟沙能力的英文：
silts carrying holding capability of canal flow

silts是什么意思：
n. 淤泥
vt. 使淤塞
vi. 淤塞

The riverbed is silted up, so there's no outlet for the floodwater.
河道淤塞，洪水无出路。

Mud and silt have been continuously deposited in the lake.
泥沙不停地淤积在这湖里。

These particles range from coarse silt to sand or pebble size.
这些颗粒的大小变化范围是从粗粉砂级到砂级或细砂级。

carrying是什么意思：
adj. 运送的
v. carry的现在分词；携带

carry an article
刊登一篇文章

To carry by barge.
用驳船运载

a device on an aircraft for carrying bombs.
飞机上用来装载炸弹的装置。

holding是什么意思：
n. 所有物；租种的土地；股份
adj. （活动或行动）暂时用作维持现状的

nail down; nail in;hold by
钉住;使人遵守诺言

We hold on in spite of the storm
我们冒着暴风雨继续前进。

hold a fair to raise money
举办义卖会筹款