"That's a type of whitefly, is it?"— 'Yes. it is a whitefly.'“那是一种粉虱，对吗？”——“是的，是粉虱。”The five small arthropod were still very serious pest, especially aphid, scale and whitefly.其中,五小害虫的危害仍然非常严重, 尤其是蚜虫 、 蚧壳虫...
所有的化油器都具有某种型式的贮油箱或浮子系统.All carburetors have some type of fuel reservoir or float system.鱼咬钩时,钩线上的浮子上下跳动.The float on a fishline bobs up and down when a fish grabs the hook.空气漏入浮子室中,会使化油器不稳定.Air leakage to the float bowl ...
Objective To observe susceptibility of Streptococcus mutans biofilms to erythromycin.目的观察变形链球菌生物膜对红霉素敏感性.Recent studies suggested that erythromycin may be effective in prophylaxis against pertussis in exposed, susceptibl...
Other industries have had to sack managers to reduce administrative costs...其他行业只得精简管理人员以减少行政开支。We have been working very hard, and our families have also worked hard...我们一直很努力工作，并且我们的家人也是如此。Many men still have difficult...