chemical是什么意思
n. 化学药品
a. 化学的, 化学上用的
n. material produced by or used in a reaction involving changes in atoms or molecules
a. relating to or used in chemistry
a. of or made from or using substances produced by or used in reactions involving atomic or molecular changes
chemical的用法和例句
1.It’s essentially the chemical used to separate other chemicals from each other.
甲醇主要被用于 分离其它化学物
2.Aspirin isn’t actually found in willow bark, but it’s a chemical that’s very, very similar to chemicals that are.
事实上阿司匹林并非以柳树皮为原料 但是它们的化学元素非常非常的相近
3.He wanted to know if the limits set for individual chemicals were still safe if they were used in a chemical cocktail.
他想知道单种农药的用量限制 在被混合使用后是否依然安全
4.They are chemical molecules, they are literally parts of a thing, a body or an object that have been released into the air, and we detect those in our noses by chemical detectors.
他们是化学分子 确实是物体的一部分 是被释放到空气中的物质 我们通过鼻子中的化学探测器检测到他们
5.What’s really worrying is the fact that safety levels are set just for individual chemicals, and people aren’t really looking at how these chemicals interact with each other.
真正令人担忧的是 只有单种农药的 安全用量受到限制 而人们并没有考虑 这些农药之间是如何相互作用的
6.Look, there are a few pre98 chemical weapons we have yet to be accounted for but inspectors said they found absolutely no evidence of an active chemical or biological program.
的確有一些98年前化學武器 我們還沒有考慮過 但檢察員說 他們沒有找到任何 有效的生化武器存在的證據
7.A chemical that an organi uses to communicate with another member of the same species is called a pheromone, and this is any chemical that’s released by one individual to affect another individual’s behaviour.
在同一物种间 一个生物体和另一个生物体 交流所使用的化学物质 被称为信息素 这种化学物质 由一个生物释放 去影响另一个生物的行为
8.We need some liquid water, for all those chemical reactions to happen in, we need a source of energy, like sunlight or chemical energy, and we also need some basic elements, like carbon and phosphorus.
液态水是必须的 它为所有的化学反应提供反应场所 我们需要能源 比如阳光或是化学能 我们还需要一些基本元素 比如碳和磷
9.I have a license for those chemicals.
我有购买那些化学品的执照
10.He could have seen all the chemicals.
他八成看见了所有的化学品
