日晕而雨, 月晕而风.When there is solar halo , it will rain; when there is lunar halo , it will blow.相较之下, 较薄的扁平冰晶只会产生视角为22度的日晕.In contrast, thin and flat falling ice crystals will produce a halo of 22 degrees only....
This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reactant.该方法使用带有二烷基咪唑盐 、 烷基吡啶盐或者己内酰胺和脂肪酸作为反应物.Thus the term dialkyl carbonate includes, for example, methyl ethyl carbona...
Mark was dragged from the burning wreckage of his car.马克被人从他着火的汽车残骸中拉了出来。We will now try to reassemble pieces of the wreckage.我们现在会尽量把残骸重新组合起来。A few survivors were pulled from the wreckage.从废墟中扒出了几个幸存者。...