Then why do my ears ring with the lowing of oxen and the bleating of sheep?那为何牛羊的哀号声在我耳朵里萦绕不绝?Fraunhofer technicians can reduce air pressure inside, making ears pop , to mimic cruising at 35,000 feet.弗劳恩霍夫的技师们可以将机舱内的气压降低...
Many ancient Chinese men of letters left behind beautiful verses about the clepsydra.作为计时器,漏刻的使用比日晷史为普遍.Galileo used a mercury clepsydra to time his experimental falling Bodies.直到16世纪时,迦利略还用水银漏壶为其自由落体实验计时.Water clock : o...
我们的调查显示这些过敏多为一次性反应。Our survey revealed that these allergies were mainly one-offs.对猫类过敏是哮喘病发作最常见的诱因之一。Allergy to cats is one of the commonest causes of asthma.有些孩子会对豆浆过敏。Soya milk can cause allergic reactions in some chil...
蓝图搞好了 吗 ?Have the blueprints been worked out?这张蓝图有点不准.There is a slight inaccuracy in this blueprint.我们的全部设计还在蓝图阶段, 我们的对手已抢在我们之前预告了他们的新式样了.While all our plans were still in the blueprint stage, our competitors got the ju...