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随着时代的飞速发展和科技的不断进步,人们在生活和工作中所接触到的化学品越来越多。有些化学品虽有毒性,但是因为奇缺或利用价值极为有限,除去从事专门职业的人员外,一般人很少有机会接触到,通常可以忽略。第二类化学品因为本身的不溶性或化学惰性,即使经常与之接触,甚至进入了人体内,也不会对人的正常生理过程产生明显
With the rapid development of the times and the continuous advancement of science and technology, more and more chemicals are exposed to people’s lives and work. Although some chemicals are toxic, because of the scarcity or very limited value of their use, most people have little chance of getting access to it and can often be neglected except those who are employed in specialized occupations. The second type of chemicals because of their insoluble or chemically inert, even with regular contact with, or even into the human body, it will not be obvious to human normal physiological processes