The pre stress bar′s real inter force is obtained by solving an inverse problem of structural vibration.
利用该公式，由实测的结构振动特性反演得到预应力筋的实际内力。
Maybe we drag ourselves to the local bar to hang out with some friends and eat, drink, and watch the news on TV – which adds its own layer of stress – hoping our feelings will just disappear.
或许我们会拖着身体去本地的各种吧去和朋友约会，吃吃喝喝，看看电视上的新闻，或许希望这种疲惫会烟消云散，但这些都是徒增自己的压力。
If you have ever had the unfortunate incident of losing a cell phone - maybe accidentally leaving it in a bar - you probably know the frantic stress that can come with searching for the device.
如果你曾经有过丢失手机的不幸遭遇——也许是不小心把手机落在酒吧里——你可能就知道寻找手机时的焦躁不安的心情。
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