DCLS

And it was found that dioxo-methyl group was a key factor to determine the antioxidant activity of DCLs, because its O and C had rather high net charge and its steric hindrance was rather low.

发现二氧甲基基团具有较大的O原子负电荷及C原子正电荷，且空间位阻较小，因此成为决定五味子素抗氧化活性的关键因素。

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For a modified Double Crack Lap Shear ( DCLS) specimen of fiber reinforced metal laminates, an expression which relates its delamination size and its compliance is derived. A method for determining the delamination size in DCLS by compliance test is developed.

导出了纤维金属胶接层板双面裂纹搭接剪切（DCLS）试样分层尺寸和柔度之间的线性关系式，提出了DCLS试样分层尺寸的柔度测量法，并与用光测法测得的分层尺寸进行了对比。

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It is shown that the compliance method for determining the delamination size in DCLS specimens is not only convenient and practical but also accurate.

结果表明，用柔度法测定DCLS试样的分层尺寸，不仅测量结果准确，而且简单易行，避免了光测法的诸多麻烦和精度低的缺点。

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