Instead of checking for a default compound value, you can also catch the access to an undefined variable. E.g.
不用再检查默认的复合值，您也可以捕获对未定义变量的访问。
In refusing to run to catch trains, I have felt the true value of elegance and aesthetics in behavior, a sense of being in control of my time, my schedule, and my life.
从拒绝追赶列车中，我体会到“优雅”的真正价值和行为中的美学，一种控制我的时间、行程和生活的感觉。
Pulling high-priority sources out of the full stream and putting them in a special place enables you to catch more of the high-value information those sources publish.
把高优先级的内容源从所有信息流中分离出来，可以让你从这些内容源里获得更多高价值信息。
Because the value of value is out of range, an exception is thrown that is caught in the catch block.
因为value的值超出了范围，所以抛出了一个被catch块捕获的异常。
What did you see the value of the Internet, catch the opportunity of the Internet, but not the right way, it is futile.
你看到了互联网的价值，抓住了互联网的机遇，但却没有找对方式，那都是徒劳。
The total catch and total value of the experimental fishing vessel increased by 18.13% and 17.4%, respectively, under the sa…
试验船总产量和总产值分别比对比船提高18.13%和17.4%，试验船每消耗1 t柴油所获得的产量、产值与利润均可高于对比船。
Parameters of the induced electromotive force and the electromagnetic torque and so on of the novel motor have been calculated, and it is not difficult to catch the maximum value of cogging torque.
计算了复合电机的感应电动势和电磁转矩，捕捉了齿槽定位转矩的最大值等电机参数。
Parameters of the induced electromotive force and the electromagnetic torque and so on of the novel motor have been calculated, and it is not difficult to catch the maximum value of cogging torque.
计算了复合电机的感应电动势和电磁转矩，捕捉了齿槽定位转矩的最大值等电机参数。
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