weak source

In those days, kids got weak back from child labor, now they're getting it from these devices. ( Source: Mail Online)

那时候，孩子们的后背不好是因为繁重的劳动，而现在却是因为这些电子设备。

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In this paper the authors study the existence and uniqueness of global strong solutions and global weak solutions for a class of strongly damped wave equations with nonlinear source term and nonlinear boundary damping term. The authors also discuss the uniform decay of solutions.

这篇文章研究一类带非线性源项和非线性边界阻尼项的强阻尼波方程强解和弱解的整体存在性和唯一性，进而也讨论解的一致衰减。

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Except for some weak points, however, the Ecclesiastical History is an invaluable historical source because of its abundant content and objective standpoint.

尽管这部作品也存在着某些缺陷，但是因为其取材广泛、史料来源丰富、立场客观，因此具有很高的史料价值。

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CFAST was weak in modeling the thermal degradation of fire source and the combustion reaction, which would limit the application of CFAST in fire scene reconstruction.

CFAST在模拟火源热解和燃烧反应上存在不足，使其在火场重构中的应用受到限制；它模拟的烟气层温度普遍高于实验值。

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Tax source management, as the important foundation of tax revenue collection and administration, is a very weak link.

税源联动管理制度是税收实践不断试炼的产物，引领着税收征管方式由传统走向现代。

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