几百张卷紧的报纸在为数5万的人群中被点燃。Hundreds of tightly rolled newspapers were set aflame among the 50,000 crowd.这种产品看起来和点燃后都与常见的香烟没什么两样。The product looks and burns like a regular cigarette.查尔斯点燃了导火索，他们便赶紧四处躲避。Charles lit the fuses and...
A vacant lot or a bombsite can, to the amateur naturalist, produce an extraordinary variety of flora and fauna.对于业余博物学者来说，在一片空地上或被炸后的废墟里可能发现种类繁多的植物群和动物群。He was a printer by trade and naturalist by avocation.他从事印刷业，同时是个博物...
Demulsibility Property of a lubricant tO separate from water.抗乳化性指润滑油与水分离的能力.Good demulsibility promotes quick water separation. If water is an unavoidable contaminant, thereby ensuring effective lubrication.抗乳化性强,能迅速把水份...