当前类别：石油英语
永久利益：perpetual interest
永久记录：permanent recording
永久基准面：PD
永久积雪线：line of firn
永久河床：permanent bed
永久负荷;不变负荷：Permanent load
永久冻土区：permafrost area
永久冻土：permafrost
永久导向基座：Permanent guide base
永久导向基盘：PGB
永久磁带：nonremovable tape
永久测站;埋石点：permanent station
永久;永存物;年金：perpetuity
永恒的：perp
永干湖：Permanently extinct lake
永冻土：Permafrost
永冻层：Permafrost
永磁消磁头：permanent-magnet erasing head
永磁电动式扬声器：PM.D.SP.
拥护者：advocate
佣人;公务员：servant
佣金代销：sale on commission
佣金：commission
硬质微孔泡沫层：rigid cellular foam layer
硬质沥青：hard bitumen
硬质合金牙尖的卡瓦：carbide-tipped slips
硬质合金镶刃铣刀：carbide-tipped milling cutter
硬质合金取心钻头：hard metal core bit
硬质合金刀具：cemented carbide tool
硬质刀具：inserted tool
硬玉-蓝闪石型相系：jadeite-glaucophane type facies series
硬岩粉土：alphitolite
硬岩地质学：hard-rock geology
硬岩层中钻进：rough drilling
硬橡皮;胶木：ebonite
硬通货：hard currency,hard money
硬条带夹层：hard streak
硬水软化设备：water softening equipment
硬水垢：hard scale
硬书皮的：hardback
硬石膏指示比：AIR
硬石膏岩：anhydrite rock
硬石膏鞘：anhydrite sheath
硬石膏白云岩：anhydritic dolomite
硬砂质页岩;筒状侵入体;烟道：flue
硬砂岩钻头：core-barrel bit
硬砂岩：graywacke,greywacke
硬色调底片：hard negative
硬片：plate negative
硬皮泥球：armoured mud ball
永久记录：permanent recording
永久基准面：PD
永久积雪线：line of firn
永久河床：permanent bed
永久负荷;不变负荷：Permanent load
永久冻土区：permafrost area
永久冻土：permafrost
永久导向基座：Permanent guide base
永久导向基盘：PGB
永久磁带：nonremovable tape
永久测站;埋石点：permanent station
永久;永存物;年金：perpetuity
永恒的：perp
永干湖：Permanently extinct lake
永冻土：Permafrost
永冻层：Permafrost
永磁消磁头：permanent-magnet erasing head
永磁电动式扬声器：PM.D.SP.
拥护者：advocate
佣人;公务员：servant
佣金代销：sale on commission
佣金：commission
硬质微孔泡沫层：rigid cellular foam layer
硬质沥青：hard bitumen
硬质合金牙尖的卡瓦：carbide-tipped slips
硬质合金镶刃铣刀：carbide-tipped milling cutter
硬质合金取心钻头：hard metal core bit
硬质合金刀具：cemented carbide tool
硬质刀具：inserted tool
硬玉-蓝闪石型相系：jadeite-glaucophane type facies series
硬岩粉土：alphitolite
硬岩地质学：hard-rock geology
硬岩层中钻进：rough drilling
硬橡皮;胶木：ebonite
硬通货：hard currency,hard money
硬条带夹层：hard streak
硬水软化设备：water softening equipment
硬水垢：hard scale
硬书皮的：hardback
硬石膏指示比：AIR
硬石膏岩：anhydrite rock
硬石膏鞘：anhydrite sheath
硬石膏白云岩：anhydritic dolomite
硬砂质页岩;筒状侵入体;烟道：flue
硬砂岩钻头：core-barrel bit
硬砂岩：graywacke,greywacke
硬色调底片：hard negative
硬片：plate negative
硬皮泥球：armoured mud ball