A brief overview of water heavy metal pollution's status, the treatment research of water heavy metal pollution in current domestic and foreign countries was summarized.

对水中重金属离子的污染现状进行简要的概述，并对国内外水中重金属污染治理的研究工作进行了系统综述。

youdao

Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton).

重水之所以重是因为水中氢的重量是普通氢的两倍（它的原子核中有一个质子和一个中子，而不仅仅是一个质子）。

youdao

Smoke lay heavy on the far side of the water.

水面对岸悬浮着黑沉沉的烟雾。

《牛津词典》

Mr.Ban said the needs in Haiti are huge and immediate above all medical supplies, food,water,tents,shovels and heavy equipment.

VOA: standard.2010.01.14

He says ground troops need to secure drop zones for the heavy pallets of water, food and medicine, and that they need vehicles and other capabilities to secure and distribute the aid.

VOA: standard.2010.01.19

Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton).

ECONOMIST: Longevity

Homes in the Drybridge Street and Wonastow Road areas have been damaged several times by high rising water during heavy rainfall.

BBC: NEWS | UK | Wales | South East Wales | Flood defences for at-risk homes

That's not to say that celery sticks - along with other high fibre, water-heavy fruits and vegetables - have no value as weight-loss aids.

BBC: Who, Why, What: Can foods have negative calories?