引发癌症的原因多种多样，包括放射线辐射、化学物刺激以及病毒感染等，不同个体对诱发癌症的外因有不同程度的抵制能力。
There are many different causes, ranging from radiation to chemicals to viruses; an individual has varying degrees of control over exposure to cancer-causing agents.
最近有三名国会议员就破裂法发表报告，报告指出，2005—2009年间石油和天然气公司使用的2500多种破裂材料含有750种化学物，有些成分是对人体无害，如柠檬酸、速溶咖啡。
Three members of Congress recently released a report on fracking, saying that oil and gas companies used more than 2,500 fracking products containing 750 chemicals between 2005 and 2009.
我们在这说的燕窝是由多种雨燕生产出来的，尤其是金丝燕在做巢时会排放一种化学混合物，使空气变冷。
The nests in question here are produced by a variety of Swifts, specifically Cave Swifts who produce the nest by spitting a chemical compound that hardens in the air.
美国国家航空航天局的研究一再表明，活的、绿色以及开花的植物，能够清除建筑物内空气中多种有害化学物质。
NASA research has consistently shown that living, green and flowering plants can remove several toxic chemicals from the air in building interiors.
槲皮素是一种同白藜芦醇相对接近的化学物，在多种水果蔬菜中广泛存在，包括洋葱，葡萄，蓝莓，茶，花椰菜和红酒。
Quercetin, a close chemical relative of resveratrol, is present in a variety of fruits and vegetables, including red Onions, grapes, blueberries, tea, broccoli and red wine.
玻璃纤维与树脂结合，抗张裂性能加强、耐多种化学品的腐蚀、抗撞击、增强韧性、可承受重压、重载物行走。
Combining glass fiber with resin, strong performance resistant to crack, resistant to various, chemicals, resistant to impact, strengthened toughness, able to bear heavy pressure and goods.
现有的多种天然气水合物开采方案，如热激法、减压法、化学抑制剂法、置换法和混合开采法等。
Several exploitation methods for tapping NGH have been suggested, such as thermal activation, pressure releasing, chemical inhibitor, replacement and slurry mining.
在化学方法中，对水凝胶的研究开展较为广泛，同时还合成了多种较为安全有效的多聚物。
Researches on hydrogel are carrying out actively in chemical methods while various of multipolymers with safty and effectivity have been synthesized.
传统的肽类合成多采用液相化学合成，常用的包括碳二亚胺法，混合酸酐法、酰氯法、叠氮物法等等，为多肽的合成提供了多种选择。
Peptides are traditionally synthesized in liquid phase, such methods are DCC, mixed anhydrides, acyl chloride and azide etc. , which provide more choices for peptides synthesis.
含铌化合物也作为助剂或光催化剂，广泛地应用于催化多种化学反应。
Compounds containing niobium can also be widely used in a variety of chemical reactions as assistant or photocatalysts.
它里面含有大量致命化学物和致癌物，让你患上急性心脏病、冠心病、中风、肺癌等多种癌症。
It contains a host of deadly chemicals and carcinogens which can cause suffering from heart disease, stroke and lung cancer.
植化分析显示，唐古特青兰的主要化学成分是三萜类和黄酮类化合物，而且其黄酮类化合物含量高于其他多种传统中药。
Phytochemical analysis of D. tangutium showed that main chemical components are triterpene and flavonoids and notably D. tangutium contains more flavonoids than that of many traditional Chinese herbs.
用热化学方法，可以将木质纤维原料液化成为烃、醇、酚、羧酸等多种有机物以及一些无机物。
Lignocellulosic materials can be converted into hydrocarbons, alcohols, phenols, carboxyl acids and inorganic compounds by liquefaction.
所有的岩浆基本上地包括多种多样的硅酸盐矿物，高硅氧化合物；但任何给定的(岩浆)流的化学成分都可能与其他岩浆流有完全不同地化学成分。
All magma consists basically of a variety of silicate minerals, high in silicon-oxygen compounds, but the chemical composition of any given flow may differ radically from that of any other.
植物提取物是以植物为原料，经过一系列物理、化学提取过程，得到的由一种或多种天然活性成分构成的植物产品。
Plant extracts (PE) are phytogenic products consisting of one or more types of natural active ingredients, which come from physical or chemical extraction of natural plants.
室内装修材料会释放多种有毒有害化学物，室内空气污染是当今人们关注的重要环境问题之一。
Some toxicants and injurants may emit from decorative materials and cause gaseous pollutants so that indoor air pollution has been one of the most concerned environmental problems.
天然气水合物的研究涉及地球物理、地球化学、地质等多种学科，其中地球物理方法在天然气水合物的探查和研究中发挥着重要的先导作用。
The studies of gas hydrate involve Geophysics, Geochemistry, Geology, and so on. Now, the geophysical recognitions are dominant in the discovery and research of gas hydrate.
天然气水合物的研究涉及地球物理、地球化学、地质等多种学科，其中地球物理方法在天然气水合物的探查和研究中发挥着重要的先导作用。
The studies of gas hydrate involve Geophysics, Geochemistry, Geology, and so on. Now, the geophysical recognitions are dominant in the discovery and research of gas hydrate.
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