Objective To evaluate the control effects of twelve rich - d - trans allethrin coils and allethrin coils against mosquitoes. 目的测试以富右旋反式烯丙菊酯和烯丙菊酯为有效成分不同品种盘香对淡色库蚊的防治效果.
...a faltering, artless voice that is pleasant enough, if rather lacking in light and shade.尽管缺乏层次变化，但听上去仍比较悦耳的有些颤抖、未作修饰的嗓音。Leaning on Jon, Michael took faltering steps to the bathroom.迈克尔倚着乔恩，踉踉跄跄地走到浴室。Normal life is at...
The three acts will alternate as headliners throughout the tour...这3个节目将在整个巡回演出中轮流打头牌。Convolutions frequently alternate in direction of rotation and vary in pitch.盘旋经常改变回转方向和节距.His group was forced to turn back and take ...
If the chickens come out of their coops early,it will rain during the day.鸡出笼早,当天雨到。And let's be clear the supposed alternative, nonprofit coops, a sham.我们应该清楚的是, 拟议的替代方案-非盈利的合作组织是假的.Young cocks love no coops.小公鸡不恋笼...