As long as there is a strong willpower, naturally will have the ability, wisdom and knowledge. - - Toy Jef J Ki.

只要有坚强的意志力，就自然而然地会有能耐、机灵和知识。 ——陀思妥耶夫斯基。

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For the same sized cracks bigger diameter pipe material possesses larger KI and J integral value therefore bigger diameter pipe material is more sensitive to defects.

对于相同尺寸的裂纹，大管径材料具有较大的KI和J积分值，因此，大管径材料对缺陷更敏感。

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