The switch works by passing a pulse of current between the tip and the surface.
电源开关的工作原理是让电流脉冲穿过触点和触面之间。
Only by their joint efforts, can parents and children bridge the generation gap between them.
只有通过他们的共同努力，父母和孩子才能弥合他们之间的代沟。
Biological hypotheses include ecological changes brought about by the evolution of cooperation between insects and flowering plants or of bottom-feeding predators in the oceans.
生物学上的假设包括生态变化，这些变化是由昆虫和开花植物之间的共同进化，或海洋中以海底生物为食的捕食者的进化所带来的。
There is a mismatch between the skills offered by people and the skills needed by industry.
人们所提供的技能和行业所需要的技能并不匹配。
Research suggests that babies learn to see by distinguishing between areas of light and dark.
研究显示婴儿是通过区分明亮区域和黑暗区域来学会观看的。
You can toggle between them and the normal icons by selecting View Options.
你可以通过选定视图选项在它们和正常图标间切换。
Children do not know by instinct the difference between right and wrong.
儿童并非生来就会分辨是非。
Increase the amount of time you spend exercising by walking between 15 and 20 minutes.
步行15到20分钟来增加你用于运动的时间。
Tourist trips of all kinds rose by 10.5% between 1977 and 1987.
各类旅游在1977至1987年间增长了10.5%。
The country has been battered by winds of between fifty and seventy miles an hour.
这个国家一直受到时速50至70英里大风的袭击。
Ozone is produced by the reaction between oxygen and ultraviolet light.
臭氧是氧气与紫外线发生化学反应而产生的。
Second, they rely on a system that has long been marked by a poor relation between national health and social-care services.
其次，他们所依赖的体系长期以来一直以国民健康和社会保健服务之间的脆弱关系为特征。
It is transmitted between animals and humans by the bite of infected fleas, direct contact, inhalation and rarely, ingestion of infective materials.
它通过受感染跳蚤的咬伤、直接接触、吸入和极少摄入传染物在动物与人之间传播。
It is transmitted between animals and humans by the bite of infected fleas, direct contact, inhalation and rarely, ingestion of infective materials.
它通过受感染跳蚤的咬伤、直接接触、吸入和极少摄入传染物在动物与人之间传播。
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