For many years the leading fixatives were the animal products ambergris, civet, musk and castoreum.

多年来,用的较多的固定剂是动物制品龙涎香 、 香猫香 、 麝香、以及河狸香.

辞典例句

A beaver looking for a building site is very choosy.

河狸寻找造窝的场所时是很挑剔的.

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Other things help a beaver in his active life.

其他一些因素也有助于河狸的活跃生活.

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The beavers think as they build their dams and their houses.

河狸在修水坝或垒窝的时候也会动脑子.

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The kind of construction work a beaver specializes in is truly amazing.

河狸专门从事的那种建筑工作确实令人震惊.

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Beaver ducked under the bulrushes and swam to his lodge.

河狸从灯心草里突然潜入水中游向家去.

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Beavers seem to know just how high to make a dam.

河狸似乎知道该把堤坝筑多高正好.

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A beaver could not live without his big strong front teeth.

河狸离开它大而坚硬的前牙就不能生存.

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But beavers do more than build their houses.

河狸还不仅仅会造窝.

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Heritability of kinship pheromone in the beaver: how is information about relatedness coded?

河狸亲缘信息素的遗传力: 遗传关系的信息是怎样编码的?

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