题目内容
(请给出正确答案)
[单选题]
用入射角36.5°的斜探头一次波探测钢工件时,测得某缺陷的声程为141mm,缺陷距探测面的深度为()。(有机玻璃C1=2730m/s,钢CS=3200m/s)。
A.101mm
B.104mm
C.108mm
D.110mm
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A.101mm
B.104mm
C.108mm
D.110mm
A.15mm
B.30mm
C.45mm
D.60mm
A.125mm
B.150mm
C.200mm
D.250mm
A.GHT-1A
B.GHT-1B
C.GHT-5(A区)
D.GHT-5(B区)
A.GHT-1A
B.GHT-1B
C.GHT-5(A区)
D.GHT-5(B区)
A.探头油雾循环腔需要清洗
B.接线箱保险丝损坏或探头故障
C.探头地址码设置错误
D.烟气探测孔堵塞
A.125mm
B.150mm
C.200mm
D.250mm