Low pit aspiration ratio and cracks of some bordered pits are the main reasons for increasing liquid impregnation after radio-frequency vacuum drying treatment.
具缘纹孔的闭塞率较低以及部分具缘纹孔周缘破裂是高频真空干燥后木材浸注性提高的主要原因。
Progress in research on stress cracks of corn drying process;
研究了水稻在干燥后存放过程中的应力裂纹规律 。
This technique can provide a new method for reduction of the drying shrinkage of concrete and prevention of the cracks of concrete.
该技术为混凝土的减缩防裂提供了新的途径。
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