bay 框,架,机架,底板 * k5 n) h0 G2 H6 z# \* j$ q) B
bayonet base 卡口灯座 ! z+ z! ^5 l8 I; q
bayonet mount 插刀式插座,卡口座 8 r6 S: Z9 W/ ~% n
bayonet ring 卡口接环 7 P( W) G6 h) t% Q! J# j% e
beacon (1)指向标(2)指向波 & ]# S- v7 V/ s; K
beacon lamp 标向灯,信标灯
% U: H' N! l0 xbeacon light beam 信标光束
1 p5 ^, ^" T. Vbeaconage 信号系统
/ n' V" g+ w# z) R$ Dbeaconimagery 灯标 " L0 L$ L3 ~% k( y" j6 U- D
beacons 指向标,标向波 6 ?& {" Y x! U7 q a
bead (1)珠,球,颗粒(2)卷边 & h# v7 d# v* e
bead phototransistor 玻珠式光电晶体管 - N- x+ F8 |3 v/ _4 U! Z
beaded screen 玻珠[放映]屏
' m% m! j$ }4 ]/ m: q0 p. h5 ^9 Ibeading 玻璃熔接 ( ^' f3 p' U, _3 n! s$ J/ U J3 I+ p
beam (1)波束(2)光束 + C d& S4 T1 w3 `. C- r5 S4 e
beam angle 光束孔径角,射束孔径角 : Z8 \% S/ r; M
beam angle of scattering 散射[波]束锥[形]角
: X% z& g% O7 u- C- ubeam antenna 定向天线 + n' E+ l7 e& V% I2 [
beam aperture 射束孔
# {) B" }; B& h( V& `beam attenuator 光束衰减器
1 E4 f) e7 h" s+ l' O4 `beam axis 射束轴
6 B8 }0 }* N) Z" I" }; [; U9 Wbeam balance ratio 光速平衡比 / Z+ @. s8 j. p! f" b4 I
beam brightness 光束亮度 * C7 m- S4 z1 V% D9 D' R4 t( P
beam bunching 聚束
/ |6 e( a2 B" a6 E, G4 l3 bbeam candlepower 束烛光 + J& T& |2 A4 ~3 z# n" q
beam combiner 光束组合器 0 F, m( ]/ m) l9 n
beam current 射束电流 |