Other fixatives which may be used include the oleoresins such as benzoin, or styrax.其他可用的固定剂有苯偶姻或安息香等含油树脂.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...
A series of collapse craters , or calderas, lie at its summit.其顶端有一系列崩塌的火山口, 或称火山臼.The eruptions were associated with the development of a number of giant craters ( calderas ).随着火山爆发形成了多个大火山口 ( 破火山口 )....
他的头骨做过大面积的矫形手术。He has received extensive corrective surgery to his skull.调查发现一层地下的横梁大面积腐烂。Investigations had revealed extensive rot in the beams under the ground floor.他有很大面积的耕地.He has a very large acreage under the plou...