正改应变或线应变由每单位长度内的长度改变量来定义.Normal or linear strain is defined as the change in length per unit length.圆盘外有透明的防护罩,以免偶然在圆盘上弄上污点或线迹.A transparent cover is provided to protect the disc against accidental marking or smudging.小系...
少女们因为嫉妒而有时变得很不高兴.Young girls sometimes become sulky because they are jealous.花儿移栽往往并不成功,少女们换了环境也是如此.Transplantation is not always successful in the matter of flowers or maidens.少女们看到他都四处奔逃.The virgins at sight of him fle...
Aspirin thins the blood, letting it flow more easily through narrowed blood vessels.阿司匹林可以稀释血液，使其在变窄的血管里更顺畅地流动。Most people go through life merely wishing for thins.大多数的人一生之中对目标只抱着”愿望”而己.He seldom uses a stunt man even fo...
They take pains to hire people whose personalities predispose them to serve customers well.他们千方百计雇用那些性格上天生适合服务顾客的人。Successful are those who are willing to take pains.成功的人都是那些肯努力的人.If you want to succeed in the work, you ...
They hunt game with spears or a curved wooden boomerang.他们用长矛或木制曲形飞镖猎取野味.Boomerang Nebula - the coolest place in the Universe?宇宙中最冷的地方?Next, I will talk about how the returning boomerang was developed.接下来, 我会谈到返回式回飞棒是怎么产...