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Some chemicals may cause environmental damage.有些化学物质可能会给环境造成破坏。Biodegradable packaging helps to limit the amount of harmful chemicals released into the atmosphere.可生物降解包装有助于减少排放到大气层中的有害化学物质的数量。The pipe was found to be disgorging dangerous chemicals into the sea.人们发现这个管道在向海里大量排放危险的化学物质。They ascribed his illness to chemicals in his brain. 他们把他的病归因于他脑内的化学物质。The whole food chain is affected by the over use of chemicals in agriculture.整个食物链因农业中过度使用化学物质而受到影响。Smokestacks from the factory discharge chemicals into the air.工厂的大烟囱将一些化学物质排放到空气中。Her depression is caused by a chemical imbalance in the brain.她的抑郁症是大脑中化学物质失衡引起的。Psychologists hypothesized that his odd behavior was caused by a chemical imbalance in the brain.心理学家猜测，他奇怪的行为是由大脑中的化学物质失衡引起的。These new industrial cleaners are much lower in ammonia and other dangerous chemicals than before.这些新型的工业用清洁剂中，氨和其他危险的化学物质含量都较以前的低很多。A face shield protects your eyes from harmful chemicals.面罩能保护眼睛不受有害化学物质的伤害。Chemicals form a protective layer that resists both oil and water-based stains.化学物质形成了一个抗油污和水渍的保护层。These chemicals are practically insoluble in water.这些化学物质几乎不溶于水。During exercise, the body releases chemicals in the brain that make you feel better.运动过程中，身体在大脑中释放出令人感觉良好的化学物质。CFC is just one chemical that depletes the ozone layer.氯氟烃只是其中一种消耗臭氧层的化学物质。The rash is caused by the release of chemicals, including histamine, which swell body tissues.这种皮疹是某些化学物质的释放引起的，其中包括组胺，它可使人体组织肿胀。Arrows on the photograph indicate the presence of the chemical.照片上的箭号表明该化学物质的存在。The point of the experiment is to show how this chemical reacts with water.实验的目的是要显示这种化学物质如何与水发生反应。A high proportion of the products tested were found to contain harmful chemicals.被测试的产品中有很大一部分被发现含有有害化学物质。Exercise triggers the release of chemicals in the brain that make you feel better.运动促使大脑释放出能令人感觉良好的化学物质。You will need a special chemical to neutralize the acid.你需要一种特殊的化学物质来中和这种酸。There were moderate levels of chemicals in the lake.这条湖的化学物质含量中等。The chemical was so caustic that it ate through the pipes.这种化学物质腐蚀性很强，管道都被穿透了。This chemical is found in most weedkillers.大多数除草剂中含有这种化学物质。Nitrates are chemicals that occur naturally in water.硝酸盐是水里天然存在的化学物质。Not all chemicals normally present in living organisms are harmless.并不是所有常见于生物体中的化学物质都无害。The chemicals imparted a bluish color to the paper.这些化学物质使纸张呈现出淡蓝色。The body releases a chemical that disposes you towards sleep.体内释放出一种使人昏昏欲睡的化学物质。These chemicals modulate the effect of potassium.这些化学物质可以调节钾的功效。The illness is triggered by a chemical imbalance in the brain.这种疾病是大脑化学物质失衡诱发的。She suffered a massive exposure to toxic chemicals.她大量接触到有毒化学物质。Objects left by tourists had been petrified by the action of chemicals in the water.游客们丢下的东西因受水中化学物质的作用而石化了。Organic produce is free from harmful chemicals.有机农产品不含有害化学物质。The body produces chemicals that are natural painkillers.人体会产生一些化学物质，它们是天然的止痛剂。You have to understand how these chemicals interact.你得知道这些化学物质是如何相互作用的。These chemicals could indicate the presence of water on the planet.这些化学物质可能表明这颗行星上有水。It's thought that the blast occurred when volatile chemicals exploded.人们认为，易挥发的化学物质爆炸时产生了冲击波。These dangerous chemicals are building up in our lakes and ponds.在我们的湖泊和池塘里这些危险的化学物质越来越多。The blast occurred when volatile chemicals exploded.挥发性化学物质爆炸时产生了冲击波。These medicines are used for correcting chemical imbalances in the brain.这些药物是用来治疗大脑化学物质失衡的。Plastic releases dangerous chemicals when it burns.塑料燃烧时会释放出危险的化学物质。 |