尽管人类发明了合成橡胶，但现在没有能替代天然橡胶的好产品，因为人工合成橡胶弹力和强度还无法和天然橡胶相比。
Despite the invention of synthetic rubbers, there is often no good substitute for the real thing, for nothing artificial yet matches natural rubber's resilience and strength.
用来制造香精的原料包括动植物的天然产品和人工合成的材料。
Raw materials used in perfumery include natural products, of plant or animal origin, and synthetic materials.
细胞工程和遗传工程技术将为人工合成天然活性物质开辟新的途径。
Cell engineering and genetic engineering technology will open up a new route to artificial synthesis of natural active substances.
包括天然表面活性物质及人工合成表面活性剂的分布和作用，及表面活性剂在海洋体系中的应用等方面。
The distribution and functions of the natural surface active agents and the artificial detergents were mentioned and the applications of the surfactants in the marine system were included.
美国精神病药理学会：参与对天然的和人工合成的化合物对脑、神及人类行为的作用的评估。
American College of neuropsychopharmacology the field of neuropsychopharmacology involves the evaluation of the effects of natural and synthetic compounds upon the brain, mind, and human behavior.
用在您皮肤上的产品最终都会被您的身体所吸收。通过有机认证的产品是绝对健康和天然的，而人工合成的则不是。
What you put on your skin eventually ends up in your body. certified organic products are completely healthy and natural, synthetic alternatives are not.
本目录所称剧毒化学品是指具有非常剧烈毒性危害的化学品，包括人工合成的化学品及其混合物（含农药）和天然毒素。
The highly toxic chemicals mentioned in the Catalogue refer to those with acute toxic hazard, including the manually synthesized chemicals and their mixtures (including pesticides) and natural toxins.
介绍了主要的坯用色料，主要的天然坯用色料和人工合成坯用色料及其在应用中须注意的问题。
It introduces some main body stains, natural body stains and mutual synthesis body stains as well as the questions which must pay attention in the application.
聚合物许多天然和人工合成的化合物中的任一种，通常具高分子的重量，包含最多可达上百万个的彼此重复且相连的单位，每一个单位都是一个相对较轻和较简单的分子。
Any of numerous natural and synthetic compounds of usually high molecular weight consisting of up to millions of repeated linked units, each a relatively light and simple molecule.
用来制造香精的原料包括动植物的天然产品和人工合成的材料。上好的香精还可能是用上百种香料调配而成。
Raw materials used in perfumery include natural products, of plant or animal origin, and synthetic materials. Fine perfumes may be Blends of more than 100 ingredients.
新西兰饲养业以自然放牧为主，不使用人工合成饲料和催生长饲料，提倡纯天然绿色的养殖方式。
The farming business in New Zealand is free farming. They don't use any artificial or hormone feedings but natural green raising method only.
新西兰饲养业以自然放牧为主，不使用人工合成饲料和催生长饲料，提倡纯天然绿色的养殖方式。
The farming business in New Zealand is free farming. They don't use any artificial or hormone feedings but natural green raising method only.
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