防气窜
preventing gas-channeling
anti-gas channeling
gas channeling
gas migration prevention
gas block
anti-fluid-channeling
anti-channeling
防油防水剂
Oil-and Water-Repellent Agents
防油防水纸
grease-proof and waterproof paper
油气防后倾缸
hydro-pneumatic back-stopping cylinder
中油油气勘探软件国家工程研究中心
CNPC Exploration Software Co.
software center
Ltd.
GRI
bgp
本色防油纸
unbleached greaseproof paper
变压器用防油纸板
transformer oil-proof board
充气防爆式电机
gas-filled type explosion-proof machine
gas-filled type explosionproof machine
大气防护距离
Atmospheric environmental prevention distance
电气防爆
electrical flame-proof
electrical explosion proof
electric explosion protection
Electrical apparatus explosion-protection
explosion-proof equipment for coal mine
电气防爆安全
electrical explosion protection safety
电气防爆技术
electrical explosion protection technique