dosage
单词辨析：
主要表示某种物质的量。
A large quantity of water is stored in the reservoir.
水库存了大量的水。
We import huge quantities of oil each year.
我们每年进口大量石油。
指把各部分加起来的总数。
Dividends for the year amounted in the aggregate to $50, 000.
该年的红利总计达5万美元。
What is the aggregate of goals from the four football matches?
这4场足球赛的总进球数是多少?
普通用词，主要与表示时间、金钱、物质等的不可数名词连用。
He spent a large amount of time in New York.
他在纽约呆了好长时间。
We need a small amount of fuel.
我们需要少量的燃料。
尤指经常性一次用药的剂量。
You should reduce your daily dosage of the medicine.
你应该减少每天的用药量。
Excessive dosage of this drug can result in injury to the kidney.
这种药使用过量会损害肾脏。
相关例句：
You've doubled your dosage?
你把剂量加倍了？
But the dosage of estrogen in current birth control pills has been dramatically reduced.
考尼茨和其他专家表示在目前的避孕药中所含雌激素的剂量已大大减少。
Experimental results show: the dosage of collecting agent and sodium silicate has great influence towards bastnaesite floatation;
试验结果表明：捕收剂、硅酸钠的用量对氟碳铈矿的浮选影响显著；
The photoquenching efficiency was positively related to the dosage of parathion-methyl, trifluralin, glyphosate and bensulfuron-methyl.
其光猝灭作用强度与甲基对硫磷和氟乐灵、草甘膦、苄嘧黄隆的剂量成正相关。
The supported catalyst was systematically optimized with respect to catalyst dosage and calcination temperature.
实验了催化剂的负载量和煅烧温度对催化剂活性的影响。
And the toxicity of cinnabar could be avoided by normalizing the preparation method, controlling the dosage and duration.
通过规范用药方法，控制用药剂量和用药时间是可以避免朱砂中毒的。