Use bifocal or varifocal lenses may relieve asthenopia.如改用双焦点或渐进多焦点镜片可能有助于减轻视疲劳.Results Questionnaire indicated most patients complained about dry eye , foreinbody sensation , asthenopia and red eye.结果调查问卷中,干眼患者最多的主诉是干涩、...
Light petroleum distillate , generally known as naphtha, was the logical choice.轻石油馏分, 如石脑油是合乎逻辑的选择.The accelerant pattern on the bottom of Luke's shoes, various petroleum distillate, including toluene?鞋底助燃剂的痕迹是一些石油...
It is expressed as a percentage.它是以百分比的形式表示的。Television attracts a large percentage of the people.电视吸引了大部分观众.What is the percentage of nitrogen in air?空气中所含的氮的比例是多少?...
One set of provisions tightens emission standards.一套使排放标准更加严格的规定.Requires no special tools or fittings; hand tightens to relief valve outlet.不需要专用工具或管件; 用手将其紧固到安全阀上即可.The heart tightens at the grandeur we've already...
They were talking in whispers.他们在悄悄地谈话。While he was talking to his secretary, he toyed with a pencil.在和秘书谈话的时候, 他手中摆弄着一支铅笔.How much money are we talking about?...总共是多少钱？Why do you use so many prefixes while talking?你说起话来...