The goal has now been finally attained through their dauntless and persistent efforts.
经过他们百折不挠，再接再励的努力，现在终于达到了目的。
Through years of researchers' persistent efforts, quite a number of plate and shell elements have been presented and many of them are excellent.
经过众多研究者数十年的努力，已经有为数可观的板壳单元出现，其中不少是品质优良的。
The goal has been finally attained through their dauntless and persistent efforts.
他们百折不挠，再接再厉，终于达到了目的。
The goal has been finally attained through their dauntless and persistent efforts.
他们百折不挠，再接再厉，终于达到了目的。
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