harmful chemicals in the ocean 要准确通顺翻译.

harmful chemicals in the ocean 要准确通顺翻译. large a___of harmful chemicals were poured into the rivers.填空 Pool experts have determinded the proper levels of chemicals that must-------in pool water to protect the swimmers from infection and the equipment-------corrosion and damage.Chlorine keills harmful organisms,but it won't work properly if the alkalin many plants and animals relieve a substance to absorb harmful chemicals.不好意思啊，操作失误，原句是：As a defense against air pollution damage,many plants and animals relieve a substance to absorb harmful chemicals.这个在句中怎 怎么翻译Chemicals are carried in bulk in chemical carriers. Many other new techniques are now available that enable more research to..请帮忙分析句子结构完整句子：Many other new techniques are now available that enable more research to be done in the test tube to see if chemicals produce harmful large amounts of harmful chemicals 为什么会有这样的表达方式?amounts of 不是只能跟不可数名词吗?那这里为什么可以用chemicals呢?如果不确定请勿随意回答 people use chemicals too much in their fields关于这个句子,chemicals(化学品)不是复数吗?为什么用too m bulk chemicals 英语翻译NOTE:The use of a central chemical storage area for locating unused chemicals is recommended for efficient use of chemicals.Chemicals that cannot be used should be placed in a staging area (temporary accumulation area).Each laboratory mus farmers use chemicals too much in their fields.farmers use too many chemicals which destroy the sol.这两句为何一个many一个much? The chemicals in the vegetables and fruit are bad _____our health.为什么是bad for? Xn:Harmful harmful、、、、 意思 harmful是什么意思 As is vividly depicted in the picture, smoking is harmful to your healthas是指 smoking还是指 smoking is harmful to your health There is a new( ) lab in our school.A.chemical B.chemistry C.chemicals D.chemistry's David works alone in a dark room that ____ of chemicals.我选consists,答案是smells,