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.For many years the leading fixatives were the animal products ambergris, civet, musk and castoreum.河狸寻找造窝的场所时是很挑剔的.A beaver looking for a building site is very choosy.其他一些因素也有助于河狸的活跃...
Serum BAP and OC were measured by enzyme linked immunosorbent assay ( ELISA ).采用ELISA法测其血清 BAP 及OC水平.The concentrations of IL - 1� � and IL - lra in GCF werequantified by sensitive enzyme linked immunosorbent assay ( ELI...
With great difficulty, the fisherman manoeuvred his small craft close to the reef.渔夫费了很大的劲才把他的小船划到暗礁旁。The water came up to the fisherman's thighs.水没到了渔夫的大腿。Barbary whistled a Ronssllon fisherman's song.巴伯里用口哨吹一...