barometric correction,气压表器差修正

barometrograph,空盒气压计

barothermograph,气压温度计

barrel distortion,桶形畸变；负畸变

base,基底

base line,基线

base peak,基峰

base unit(of measurement),基本（测量）单位

baseband LAM,基带局域网

baseline drift,基线漂移

baseline noise,基线噪声

baseline potential,空白电位

baseline value,空白值

basic NMR frequency,基本核磁共振频率

basic standard,基础标准

batch control,批量控制

batch control station,批量控制站

batch inlet,分批进样

batch of strain gauge,应变计[片]批

batch processing,成批处理

batch processing simulation,批处理仿真

Baud,波特

beam,横梁；声速

beam deflector,电子束偏转器

beam path distance,声程

beam ratio,声束比

beam spot diameter,束斑直径

beam-deflection ultrasonic flowmeter,声速偏转式超声流量计

beam-loading thermobalance,水平式热天平

bearing,轴承；刀承

bearing axis,轴承中心线

bdaring support,支承架

beat frequency oscillator,拍频振荡器

beat method(of measurement),差拍（测量）法

Beaufort scale,蒲福风级

Beckman differential thermometer,贝克曼温度计

bed,机座

Beer' law,比尔定律

bell manometer,钟罩压力计

bell prover,钟罩校准器

bellows,波纹管

bellows(pressure)gauge,波纹管压力表

bellows seal bonnet,波纹管密封型上阀盖

bench mark,水准点

bending strength,弯曲强度

bending vibration,弯曲振动

bent stem earth thermometer,曲管地温表

Besson nephoscope,贝森测云器

betatron,电子回旋加速器；电子感应加速器

bezel ring,盖环

bias voltage,偏压

bi-directional vane,双向风向标；双风信标

bilateral current stabilizer,双向稳流器

bimetallic element,双金属元件

bimetallic instrument,双金属式仪表

bimetallic temperature transducer[sensor],双金属温度传感器

bimetallic thermometer,双金属温度计

binary coded decimal(BCD),二-十进制编码

binary control,二进制控制

binary digital,二进制数字

binary elastic scattering event,双弹性散射过程

binary elastic scattering peak,双弹性散射峰

binary element,二进制元

binary signal,二进制信号

biomedical analyzer,生物医学分析仪

biochemical oxygen demand (BOD)microbial transducer[sensor],微生物BOD传感器

biochemical oxygen demand meter for seawater,海水生化需氧量测定仪

biochemical quantity transducer[sensor],生化量传感器

biological quantity transducer[sensor],生物量传感器

biosensor,生物传感器

bird receiving system,吊舱接收系统

bit,比特；位

bit error rate,误码率

bit serial,位串行

bit-serial higgway,位串行信息公路

bivane,双向风向标；双风信标

black box,未知框

black light filter,透过紫外线的滤光片

black light lamp,紫外线照射装置

blackbody,黑体

blackbody chamber,黑体腔

blackbody furnace,黑体炉

bland test,空白试验

balzed grating,闪耀光栅

block,块体；字块；字组；均温块

block check,块检验

block diagram,方块（框）图

block length,字块长度

block transfer,块传递

blood calcium ion transducer[sensor],血钙传感器

blood carbon dioxide transducer[sensor],血液二氧化碳传感器

blood chloried ion transducer[sensor],血氯传感器

blood electrolyte transducer[sensor],血液电解质传感器

blood flow transducer[sensor],血流传感器

blood gas transducer[sensor],血气传感器

blood-group immune transducer[sensor],免疫血型传感器

blood oxygen transducer[sensor],血氧传感器

blood PH transducer[sensor],血液PH传感器