An imbalance in certain chemicals leads to disturbances in the brain's function.
某些化学成分失衡会道致大脑功能的紊乱.
《简明英汉词典》
Nitrates are chemicals that occur naturally in water and the soil.
硝酸盐是水和土壤中自然存在的化学物质。
《柯林斯高阶英汉双解学习词典》
Organic food is unadulterated food produced without artificial chemicals or pesticides.
有机食品是未使用人工化学制剂和杀虫剂的纯净食品。
《柯林斯高阶英汉双解学习词典》
Scientists tried out thousands of chemicals before they found the right one.
科学家们试验了数千种的化学药品才找到一种合适的.
《简明英汉词典》
The technique has been to mutate the genes by irradiation or chemicals.
该技术是通过放射线照射或者使用化学方法使基因变异。
《柯林斯高阶英汉双解学习词典》
Certain chemicals can induce undesirable changes in the nervous system.
有些化学物质能在神经系统中引起不良变化.
《简明英汉词典》
Protective gloves reduce the absorption of chemicals through the skin.
防护手套可以减少皮肤对化学物质的吸收。
《柯林斯高阶英汉双解学习词典》
Certain chemicals are easily absorbed into the bloodstream, while others are not.
某些化学药品很容易溶于血液, 有些则不行.
《简明英汉词典》
大部分商业性空气清新剂只是掩盖异味，而且通常含有危险化学品，弊大于利。
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但这并不意味着它们可以哺育月球表面的微生物体.
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Main products are electronic tools, anti-static, clean, electronic chemicals, chemical machinery.
主营产品是电子工具 、 防 静电 、 洁净 、 电子化工 、 机械化工.
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Naisuan Jian: the use of corrosive chemicals at the type and concentration.
耐酸碱性: 使用时腐蚀性化学物质的种类及浓度.
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On the depreciation of vapour control technique at term in als of liquid chemicals in bulk
散装液体化学品装卸站有毒有害蒸气控制技术的探讨
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