| 释义 |
borehole seismometer
- 地上凿洞dì shàng záo dòng
borehole
- 钻井zuàn jǐng
borehole; well drilling
- 地震检波器dì zhèn jiǎn bō qì
geophone, seismometer
- 井径jǐng jìng
hole diameter; borehole diameter
- 钻孔zuàn kǒng
drill; drill hole; perforate; borehole; solid boring; punching
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