裂紋底部 的英文怎麼說
中文拼音 [lièwéndebù]
裂紋底部
英文
base of crack-
The echo of single hole was high, its front was steep edge ; the echo of dense hole was connected and uneven ; the echo of crack was high and keen - edged, the bottom echo was decline in some certain ; the echo root of bird ' s net had some small wave followed
單個孔洞反射回波高,前沿較尖銳;密集氣孔回波參差不齊,根部互相連接;裂紋回波高而尖銳,底波有所下降; 「鳥巢」缺陷的反射波根部有若干小波峰出現。
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