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- The lichen substances may be classified into the following groups: aliphatic lichen substances, aromatic lichen substances and carbohydrates (polysaccharides). 地衣物质分为脂肪族地衣物质，芳香族地衣物质和碳水化合物（多糖类）等几个组。
- Lichens produce a wide array of both primary and secondary metabolites (lichen substances). 地衣可以产生很多初生和次生代谢物（地衣物质）。
- The emery is a hard metallic substance. 金刚砂是非常坚硬的金属物质。
- Barium sulfate is a radiopaque substance. 钡硫酸盐是一种辐射光不能穿透的物质。
- Musk is a kind of strong-smelling substance. 麝香是一种有强烈气味的物质。
- Graphite is a soft black substance. 石墨是一种软而黑的物质。
- This substance is soluble in alcohol. 这种物质能够溶解在酒精中。
- Her account was in substance correct. 她的账目基本上是对的。
- Ammonia is a chemical substance. 氨是种化学物质。
- The substance is irritable to sensitive skin. 这种物质对敏感的皮肤有刺激性。
- An inert substance used to dilute. 稀释剂一种惰性物质
- I heard the ointment is effective for treating lichen. 我听说这软膏治苔癣病有效。
- The question was never discussed in substance. 这问题实际上从来没有讨论过。
- Gelatin is a clear tasteless substance. 明胶是一种透明无味的物质。
- This substance is extracted from seaweed. 这种物质是从海藻中提取的。
- This substance must be treated with acid. 这材料得用酸来处理。
- They maintained that ghosts had no substance. 他们认为鬼魂不是实物。
- A substance believed to maintain life indefinitely. 长生不老药被认为可以使生命无限的物质
- Later he became a man of substance. 后来，他成为颇具资产的人。
- A substance that prevents the clotting of blood. 抗凝血剂防止血液凝结的物质
