单词	pyrethrone
释义	pyrethrone [化] 除虫菊酮
随便看	weld strain weld strength weld stress weld structure welds types weld surface weld swell weld symbol weld test weld test channel weld thermal cycle weld thickness weld-throat thickness depth weld-time weld time weld timer weld toe weld together weld toxic gases weld tracker weld trimmer weld trimming weld tuff weld up weld wheel conditioner 因时施智，观世立法因春感春，春信人不信。伤春病春，春尽愁不尽。因机而制变，择利以行权因材任人，国之大柄；考绩进秩，吏之常法。因材施教因材施教，因势利导因材施教，量体裁衣因果因果有知因病得闲殊不恶婚假婚典婚前保健婚变婚外婚姻婚娶婚媾婚嫁婚宴