Carried on the analysis to the lost wax casting craft sand hole defect creation factor.

对熔模铸造砂眼缺陷产生因素进行了分析。

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Research shows that the intrinsic frequency of hole defect lumbers is little lower than standard lumbers.

研究表明，含有孔洞试件的固有频率与标准试件相比略低一些，但差别不大。

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The value of width can be acquired ingeniously by using duplex latch mode while there is a hole defect in the steel plate.

用两次锁存法可巧妙地提取有孔洞缺陷时的板宽值。

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Some babies with tricuspid atresia have another heart defect a hole between the lower two chambers (ventricular septal defect).

CNN: Tricuspid atresia

This hole is either a heart defect (atrial septal defect) or an enlarged natural opening (foramen ovale) that is supposed to close soon after birth.

CNN: Tricuspid atresia

The patch is also being tested for a more common defect PFO, a hole that results when the heart wall doesn't seal the way it should after birth.

NPR: Heart Repair Breakthroughs Replace Surgeon's Knife