海底电(光)缆
electric(optic) submarine cables
海底DEM结构
structure of submarine DEM
海底电缆
submarine cable
submarine cables
undersea cable
subsea cable
seafloor cable
ocean bottom cable
underwater electrical cable
bay cable
submarine blasting
underwater cable
marine cable
ocean-bottom cable
Boltzmann(’s) constant
ocean-bottom cable OBS
submarine
static uninterruptable power supply
数字系统
digital system
Digit system
Digital systems
number system
numeral system
number representation system
Digital test system
System
numeration system
high-level synthesis
digital
海底通信光(电)缆
submarine telecommunication and optic fible cables
海底隧道
undersea tunnel
subsea tunnel
benthic tunnel
submarine tunnel
Seabed tunnel
undersea tunnels
undersea tunnel project
chunnel tunnel
channel tunnel
sub-sea tunnel
marine tunnel
Under-sea tunnel
cross harbour tunnel
rock resistant coefficient
海底沉积
sea bottom deposit
bottom deposit
thalassogenic sedimentation