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中距离，捷径，直线
beechnut || 地空通信系统
beehive coke || 蜂巢炉焦，蜂窝状焦，蜂房式焦
beehive coke oven || 蜂巢式煤焦炉
beehive cooler || 蜂房式冷却器
beehive kiln || 蜂窝式窑
beep on error || 出错报警
beetle || ①脲醛树脂(类)②搅打机，夯具，槌布机
before top dead center || 上止点前 [BTDC]
before-and-after test || 前后试验
befouling environment || 污染环境
bega || 千兆倍(10^10倍)
begin block || 开始分程序
begin column || 开始行
beginning character || 起始字符
beginning of contact || 起始啮合点
beginning symbol || 开始符号begohm || 千兆欧
behavior || 性能
behaviour || ①行为，动作②品质，状态③特性，性能，特点
behaviour decision making || 行为决策制定
behaviour equation || 行为方程式
behaviour in service || 运转性能，使用性能
behaviour modification || 行为修正，行为改变
behaviour of system || 系统行为
behaviour pattern || 行为模型，行为模式
behavioural and randomized rule || 行为与随机化规则
behavioural decision function || 行为决策函数
behavioural decision theory || 行为决策理论
behavioural model || 行为模式
behavioural motive || 行为动机
behavioural pattern || 行为模型
behavioural science || 行为科学
behavioural strategy || 行为策略
behavioural system || 行为系统
behaviourally equivalent strategy || 行为等价策略
beidellite || 拜来石，贝得石
bel || 贝(尔)(声音强度单位)[B]
bell || ①钟，铃②钟罩，钟盖(高炉)③锥体④漏斗
bell batch-type furnace || 周期作业罩式炉
bell brass || 钟黄铜
bell bronze || 钟青铜
bell character || 报警符号
bell crank || ①双臂曲柄，钟形曲柄②直角形杠杆
bell curve || 钟形曲线
bell furnace || 钟式炉
bell housing || 离合器壳
bell insulator || 钟形绝缘子，单裙绝缘子
bell jar || 钟罩
bell manometer || 浮钟压力计，钟罩压力计
bell metal || 钟铜，青铜
bell mouth || ①测流喷嘴②喇叭口，漏斗口，锥形底
bell prover || 钟罩校准器
bell push-button || 电铃按钮
bell wire || 电铃线
bell-and-hopper arrangement || 斜斗式装料装置
bell-shaped curve || 铃形曲线
bell-shaped insulator || 钟式绝缘子
bell-shaped suspension insulator || 钟形悬挂绝缘子
bell-type furnace || 罩式炉，钟形炉
belleville spring || 碟形弹簧
bellows || ①风箱②真空管③波纹管，皱纹管，伸缩软管
bellows flowmeter || 膜盒式流量计
bellows pressure gauge || 波纹管压力表
bellows seal bonnet || 波纹管密封型上阀盖
bellows type manometer || 波纹管式压力计
bellows-type mechanical seal || 波纹管式机械密封，风箱型机械密封
belly || 炉腰
belly of blast furnace || 高炉炉腰
below bearing type generator || 伞式发电机
below critical || ①次临界的②低于临界的
belt || ①皮带，带，缓冲层②传动带②安全带③带束层
belt bias tire || 束带斜交轮胎
belt brake || 带式制动器，皮带制动器，皮带刹车
belt conveyer || 传送带，带式输送机，带式运输机
belt conveyer hoisting || 皮带机提升
belt conveyor || 传送带，带式输送机，带式运输机
belt drier || ①皮带传动，带传动②带式干燥机
belt drive || 带传动
belt driving || 带传动
belt driving device || 皮带传动装置
belt filter || 带式过滤机
belt grinding || 砂布带磨法
belt lace || 皮带接头
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