borazon 博雷崇(人造业硝酸硼高硬度研磨材料) 9 G6 X$ T, ]: z1 m
border contrast 边界衬度(反差)
2 f' q1 f& X5 \( I3 S# G$ Uboric oxide 氧化硼 ; n3 h* Z" c2 @ n$ } m" M6 d$ z
boride 硼化物 + c6 x z5 a; G& @2 |( l% o+ I
Born’s first approximation 玻恩–级近似 % z# t# Q9 _. ^" u+ o+ F' v3 z
boron (B)硼 * e" c% K* r; \. C; A+ x
boron carbide 碳化硼(磨料) 7 ~, a: S& u8 @
boron doped silica 掺硼二氧化硅 * s3 {' j! k1 u+ g" x: C
boron glass 硼玻璃bordered matrix 加边矩阵 2 T* y W8 d* A1 J6 a* b: r
bore (1)孔(2)孔径(3)毛细管(激光器) ; X9 |& S1 W; T
bore gauge 孔径规
' ]. T, J; _( _* ]/ P. Dbore target centering fixture 孔[目]标定心夹具
* r( K6 e7 n; k7 a% c& hborer (1)穿孔器(2)镗床 8 p# L+ x, J6 F3 a" o1 T* Y( J7 g& [& H
borescope 内窥镜,内孔观测镜
) A0 u! f4 s; O5 h5 r0 _boresight (1)校靶镜(2)瞄准[零]线(3)内径瞄准器
# v9 d3 y# H _& C' J7 F9 rboresight adjustment 瞄准线零位调整 |