You must be careful when handling chemicals.
接触化学药品必须小心谨慎。
Poisonous chemicals got into the water supply.
有毒的化学药品进入了供水系统。
Use of these chemicals may present a fire risk.
使用这些化学品可能有失火的危险。
The land has been completely poisoned by chemicals.
这块土地已完全被化学品污染了。
Not all chemicals normally present in living organisms are harmless.
并非所有正常存在于活的有机体中的化学物质都是无害的。
There is a risk that toxic chemicals might be blasted into the atmosphere.
有毒化学品有爆炸后进入空气的危险。
There should be careful consideration about the use of such toxic chemicals.
应有对这些有毒化学品的使用的慎重考虑。
The food industry was given a green light to extend the use of these chemicals.
食品业获准扩大这些化学品的应用范围。
The new chemicals also cause nerve damage.
这种新的化学物质还会造成神经损伤。
Several chemicals have displaced the oxygen.
有几种化学物质取代了氧气。
The evaporation of chemicals is necessary for their survival.
化学物质的蒸发对它们的生存是必不可少的。
Once you smell chemicals, immediately talk with your classmates.
一旦闻到化学物质，请立即与同学交谈。
These chemicals come from the injured parts of the nuclear plant.
这些化学物质是来自核电站的受损部分。
Clearly, there are chemicals in our bodies that don't belong there.
很明显，有一些不属于我们身体的化学物质存在在我们身体中。
Never smell or taste chemicals unless your teacher gives permission.
除非老师允许，否则不要去闻或尝化学药品。
A third is certain basic chemicals such as carbon, oxygen and nitrogen.
第三种是某些基本的化学物质，如碳、氧和氮。
For example, farmers have to use a lot of chemicals to grow cotton plants.
例如，农民必须使用很多化学药品来种植棉花。
The chemist and the mistress insist that the mist consists of several chemicals.
化学家和女教师坚持认为薄雾由几种化学物品构成。
The bodies of fish and other meat-eaters can build up high levels of the chemicals.
鱼和其他食肉动物的体内会积累大量的化学物质。
Salmon also carry dangerous chemicals as the fish migrate between rivers and the sea.
鲑鱼在河流和海洋之间迁徙时也会携带危险的化学物质。
Scientists believe there might be such chemicals lying at the bottom of Europa's ocean.
科学家们认为，在木卫二的海底可能存在这样的化学物质。
Nitrates are chemicals that occur naturally in water and the soil.
硝酸盐是水和土壤里天然存在的化学物质。
Do you use dangerous chemicals?
你是否使用危险的化学物品？
There's another risk: chemicals.
还有另一风险：化学物质。
Along with some equipment and chemicals.
还需要一些仪器和化学药品。
几乎所有化学品。
These chemicals put the scent in adolescent!
这些化学物质就产生了青春期的气味。
Your body is better off without any chemicals.
你的身体没有那些化学制品会更好。
No wonder it's nicknamed "the king of chemicals".
它的绰号“化学品之王”不容置疑。
A new drug is a protocol for organizing chemicals.
一种新药就是一套组织化学物的协议。
应用推荐