来自楝属 、 印楝局的植物在杀虫活性、有活性种类数量方面高于其它属,米仔兰属、鹧鸪花属和香椿属的植物也有较高的杀虫活性.Some species of genera Aglaia, Trichilia and Toona contain very effective limonoids against insects as well....
The replicas are made by using a thin film of fusible alloy on a stiffening platen.复制是用附着在加强托板上的可熔合金薄膜实现的.It was divide as alcohol - soluble , hot - fusible and Copolyamide powder.热熔型尼龙可应用于电器线材 、 用器材、胶等行业.Sample on style...
解析:本句可用表示与现在事实相反的虚拟条件句来表达.If he had a permit, he might get the job.(真实条件句)如果他昨天到达这里, 他也许去帮助他们.If he arrived here yesterday, he might go to help them.条件句用于谈论有可能的 、 想像的或不可能的状况.Conditionals are used to about possible, imagi...