三注意 | |
tech. | three-L's |
测 深 | |
oil | sound |
测深 | |
eng.geol. | fathom; plumbing; sound |
hydroel.st. | sounding |
navig. | depth sounding |
oil | depth measurement |
rem.sens. | upper-air observation |
space | depth probe |
| |||
three-L's |
三注意 : 5 phrases in 1 subject |
Technology | 5 |