反电动势?    back-electromotive force

齿侧间隙    backlash in circular tooth

倒车灯?    backup (reversing) lamp

倒车报警器?    back-up buzze

倒车灯开关?    back-up lamp siwthc

传动轴总成的平衡    balance of drive shaft assembly

钢球    ball

球环    ball

球销式转向节    ball and socket steering knuckle

球头座    ball cup

球头轴    ball head

滚动花键球笼式万向节    ball spline rzeppa universal joint

球头销    ball stud

球阀座    ball valve seat

球叉    ball yoke

平衡电阻?    ballast resistor

平衡-不平衡转化器    balun

帘式制动器    band brake

频带过滤器?    band filter

频率宽度?    band width

整体式桥壳    banjo housing

主变速器    basic trnasmission

蓄电池?    battery (accumulator)

蓄电池壳体?    battery case

蓄电池单元?    battery cell

起动转换开关?    battery change -over switch

蓄电池充电状况警报灯?    battery charging condition tell-tale

蓄电池断路器操纵件?    battery isolating switch control

蓄电池外壳?    battery jar (accumulator jar)

蓄电池总开关?    battery main swtich

蓄电池接柱?    battery post

接线柱?    battery terminal “N”

并联电池组?    batttery in quantity

胎圈    bead

胎圈底部    bead base

胎圈芯    bead core

胎圈外护胶    bead filler rubber

胎踵    bead heel

胎圈补强带    bead reinforcing strip

钢丝圈    bead ring

胎圈座    bead seat

可选择的胎圈座轮廓    bead seat optional contours