backswamp depression 漫灘洼地 
backswamp 天然堤后漫灘沼澤 
backswept 后掠；后掠角 
backswipe reflection 來自后側(cè)巖丘表面多次反射 
backtrough 后槽 
backup arm 推靠臂 
backup copy 副本 
backup device 備用裝置 
backup flooding 保持壓力注水 
backup hydraulic control 后備液壓控制 
backup injection well 后備注入井 
backup lamp 倒車燈 
backup line 備用管道 
backup mist generator 副油霧發(fā)生器 
backup ring 墊圈 
backup shoe 推靠臂 
backup system 輔助系統(tǒng) 
backup washer 支撐墊圈 
backup water injector 后備注水井 
backup 支持；底板；阻塞 
Backus filter 巴克斯濾波器 
Backus operator 巴克斯算子 
Backus three-point operator 巴克斯三點(diǎn)算子 
Backus-Gilbert approach 巴克斯-吉爾伯特法 
backwall 后膜 
backward angle method 背離角法 
backward branch 反向分支 
backward crossover 反相交 
backward difference approximation 后向差分近似法 
backward difference implicit 后向差分隱式法 
backward difference method 后向差分法 
backward difference operator 后向差分算子 
backward difference 后向差分 
backward flow 回流 
backward folding 背向褶皺作用 
backward gain 反向增益 
backward gear 倒檔齒輪 
backward induction 逆序歸納法 
backward integration 逆向一體化 
backward interpolation 后向插值 
backward prediction error filter 反向預(yù)測誤差濾波器 
backward prediction 后測 
backward reading 反讀 
backward running 反轉(zhuǎn) 
backward station 逆位置 
backward stroke 回程 
backward wave 回波 
backward welding 反向焊 
backward 反向的 
backwarddrainage 逆向水系 
backwardstation method 后向測點(diǎn)法 
backwash cycle 反沖洗循環(huán) 
backwash efficiency 反洗效率 
backwash mark 海灘回流痕 
backwash pump 回流泵 
backwash 噴流 
backwash-regeneration cycle 反沖洗-再生循環(huán) 
backwashing 反洗 
backwasting 冰前消退作用 
backwater gate 回水閘 
backwater trap 回水存水彎 
backwater 循環(huán)水 
backway 后退距離 
backwearing 坡崖平行后退 
backweathering 后退風(fēng)化 
backweld 封底焊縫 
backwelding 反面焊接 
backwordscattered field 反向散射波場 
bacteria content 細(xì)菌含量 
bacteria corrosion 微生物腐蝕 
bacteria culture bottle 細(xì)菌培養(yǎng)瓶 
bacteria grinder 磨菌器 
bacteria remover 除菌劑 
bacteria bacterium的復(fù)數(shù) 
bacteria-free 無菌的 
bacterial action 細(xì)菌作用 
bacterial activity 細(xì)菌活性 
bacterial adherence 細(xì)菌粘附 
bacterial alteration 細(xì)菌演化作用 
bacterial anomaly 細(xì)菌異常 
bacterial attack 細(xì)菌腐蝕 
bacterial biomass 細(xì)菌生命體 
bacterial colonies 細(xì)菌群體 
bacterial contamination 細(xì)菌污染 
bacterial corrosion 細(xì)菌腐蝕 
bacterial cultures 細(xì)菌培養(yǎng)物 
bacterial decomposition 細(xì)菌分解作用 
bacterial degradation 細(xì)菌降解作用 
bacterial desulfurization 微生物脫硫 
bacterial dewaxing 微生物脫蠟 
bacterial ecology 細(xì)菌生態(tài)學(xué) 
bacterial fermentation 細(xì)菌發(fā)酵作用 
bacterial gas 微生物氣 
bacterial growth 細(xì)菌滋長 
bacterial leaching 細(xì)菌浸取 
bacterial metabolization 細(xì)菌新陳代謝作用 
bacterial methane 菌生甲烷 
bacterial oil recovery 細(xì)菌采油 
bacterial oxidation 細(xì)菌氧化 
bacterial plugging 細(xì)菌堵塞 
bacterial polymer 細(xì)菌聚合物 
bacterial prospecting 細(xì)菌勘探 
bacterial reduction 細(xì)菌還原作用 
bacterial slime buildup 細(xì)菌粘液堵塞 
bacterial surveys 細(xì)菌測量 
bacterially degraded oil 細(xì)菌降解油 
bactericidal action 殺菌作用 
bactericidal agent 殺菌劑 
bactericide 殺菌劑 
bacteriofluorescein 細(xì)菌熒光素 
bacteriogenic 細(xì)菌成因的 
bacteriohopane tetrol 細(xì)菌藿四醇 
bacteriology 細(xì)菌學(xué) 
bacteriophage 噬菌體 
bacteriophagy 噬菌現(xiàn)象 
bacteriostasis 抑菌 
bacteriostat 抑菌劑 
bacteriostatic agent 抑菌劑 
Bactrognathus 棒顎牙形石屬 
Bactrosaurus 巴克龍屬 
Bactrosporites 棒形孢屬 
Baculatisporites 棒瘤孢屬 
Baculexinis 異瘤切壁孢屬 
Baculites ovatus fauna 桿菊石屬卵圓形動物群 
Baculites 桿菊石屬 
BACW 含酸水桶數(shù) 
bad accounts 呆帳 
bad checks 空頭支票 
bad debt 壞帳 
bad earth 接地不良 
bad fishing job 復(fù)雜的打撈工作 
bad ground 復(fù)雜地層 
bad hole 復(fù)雜井眼 
bad line removal 壞線消除 
bad oil 含水原油 
bad parity 奇偶錯誤 
bad spot 受到損壞的部位 
baddeleyite 斜鋯石 
badge 徽章 
badigeon 油灰 
Badin metal 巴丁合金 
Badiotella 小步蛤?qū)?nbsp;
badly faulted 嚴(yán)重斷裂的 
badly faulting 強(qiáng)烈斷層活動 
badly graded sand 級配不良的砂 
baech-barrier system 海灘-障壁體系 
BAF 每英畝-英尺產(chǎn)油桶數(shù) 
baffle 折流板 
baffle collar 帶擋圈的接箍 
baffle filter 擋板過濾器 
baffle plate 擋板 
baffle spacing 隔板間的距離 
baffle structure 消力結(jié)構(gòu) 
baffle 擋板 
baffled gravel-placement device 裝有隔板的礫石充填裝置 
baffler 擋板緩沖板；減音器 
bafflestone 障結(jié)灰?guī)r 
bag dredge 海底挖泥機(jī) 
bag filter 袋式過濾器 
bag type blowout preventer 筒式防噴器 
bag 袋 
bag-type BOP 筒式防噴器 
bagasse 甘蔗渣 
baggage room 行李艙 
baggage 行李 
bagged cement 袋裝水泥 
Bagged slurry explosive 袋裝塑膠炸藥 
bagger 袋裝機(jī)；挖泥機(jī) 
baghouse 囊式集塵室 
bagpipe 風(fēng)笛；人為干擾發(fā)射機(jī) 
bagwork 裝袋工作；沙包 
bahada 山麓沖積扇 
bahamite 巴哈馬沉積 
bahiaite 橄閃紫蘇巖 
Bahnmetal 鉛基軸承合金 
Baicalia 貝加爾螺屬 
Baikalian orogeny 貝加爾造山運(yùn)動 
Baikalides 貝加爾褶皺系 
baikarite 貝地蠟 
baikerinite 褐地蠟 
bail bond 保釋擔(dān)保書 
bail down 提撈 
bail out 戽出；提撈 
bail the rathole 撈鼠洞 
bail 桶 
bail-out bottle 應(yīng)急呼吸氣瓶 
bailed sample 撈出的砂樣 
bailed sand sample 撈出砂樣 
bailed sand 撈出砂 
bailee 受托人 
bailer bail 撈砂筒上的提環(huán) 
bailer conductor 撈砂筒 
bailer crown-block 撈砂天車 
bailer dart 撈砂筒下部的活門 
bailer dump 撈砂筒的倒砂門；用筒裝物體倒入井內(nèi)；撈砂筒撈出物 
bailer grab 撈砂筒的撈鉤 
bailer line 撈砂繩 
bailer method of cementing 用撈砂筒注水泥 
bailer method 撈砂法 
bailer sample 撈砂筒中砂樣 
bailer valve 撈砂筒閥 
bailer 抽泥筒 
Bailey meter 貝利流量計 
bailing block 提撈滑車 
bailing bucket 撈砂筒 
bailing drum 撈砂滾筒 
bailing line 撈砂繩 
bailing machine 撈砂機(jī) 
bailing reel 撈砂滾筒 
bailing rope 撈砂繩 
bailing tub 撈砂桶 
bailing well 撈砂井 
bailing 提撈作業(yè) 
bailling tank 撈砂罐 
bailment 保釋；委托書 
bailor 委托人 
bailsman 保證人 
bainite 貝氏體 
Baire function 貝瑞函數(shù) 
Baisalina 貝塞蟲屬