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初至 P 波 | |
eng.geol. | initial P wave |
初至 S 波 | |
eng.geol. | initial S wave |
初至波 | |
expl. | first arrival |
oil | first break; first arrival wave |
space | primary wave |
静校正 | |
space | static correction |
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first arrival | |||
first break; first arrival wave | |||
primary wave | |||
first-motion wave; preliminary wave | |||
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initial S wave | |||
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initial P wave |
初至波 : 12 phrases in 3 subjects |
Engineering geology | 2 |
Oil / petroleum | 8 |
Technology | 2 |