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A substance containing chemical agents or abrasive particles and applied to smooth or shine a surface.
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上光剂；擦亮剂含有化学媒质或粗糙微粒的一种物质，被用来打光或擦亮一个表面 |
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A substance formed as a necessary stage in the manufacture of a desired end product.
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中间产物在生产预计的最终产品的必需阶段中形成的物质 |
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A substance or an agent that causes two or more objects or parts to cohere.
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黏合剂使两个或多个对象或部分连结起来的物品或媒介 |
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A substance similar to that found in the cough syrups is found in hot red pepper. Use red (cayenne) pepper with caution - it can irritate your tummy.
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它含有类似于咳嗽药水的物质。但要小心使用，因为它会刺激胃部引起不适。 |
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A substance that destroys or inhibits the metabolic action of a vitamin.
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抗维生素一种破坏或抑制维生素的新陈代谢功能的物质 |
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A substance that has been scorched, burned, or reduced to charcoal.
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烧焦物被烤焦、烧焦或烧成木炭的物质 |
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A substance that prevents the clotting of blood.
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抗凝血剂防止血液凝结的物质 |
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A substance that retards or arrests a chemical reaction.
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反催化剂延缓或阻碍化学反应的物质 |
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A substance that when introduced into the body stimulates the production of an antibody. Antigens include toxins, bacteria, foreign blood cells, and the cells of transplanted organs.
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抗原当被引入人体内可以促进抗体产生的物质。抗原包括毒素，细菌，异体血球和移植器官的细胞。 |
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A substance to be so analyzed.
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被分析物，被化验物被化验的物质 |
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A substance, especially an enzyme, that initiates or modifies the rate of a chemical reaction in a living body; a biochemical catalyst.
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生物催化剂能在活的体内产生化学反应或改变生物体内化学反应速度的物质，尤指酶；生物化学催化剂 |
