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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The high ambient temperature and damp weather has harmful influence on the cupola melting that causes increase of blow hole defect.

梅雨季节高温潮湿天气对冲天炉熔炼带来不利影响，导致铸件气孔缺陷增加。

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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.

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Dr. Chaim Lotem said the hole, measuring 1 to 2 millimeters, is a minor birth defect found in 15 percent to 25 percent of people.

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When Dr. Lillehei was putting these patches in the children to close the ventricaluar septal defect, there's a critical nerve that runs right along that hole, and it's invisible.

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