block and block [= chocka-block  [滑车]到顶; 滑车相碰

2 atrioventricular block and complete atrioventricular block  2房室传导阻滞及三度房室阻滞

BDCB Block Device Control Block  块设备控制块

Block 36 and Block 38 in Oman  阿曼36、38区块

block and block  滑车拉到头

block by block relaxation operator  分块松弛算子

block by block transfer  逐块传送

block gage (gage block) (slip gage)  规矩块; 块矩

Block Xia 502 and Block Xia 509  夏502、509断块

block-and-block  双滑车

block-by-block operation  逐块操作

block-by-block transmission  逐块传输

Building Block and Block Building  建筑砌块与砌块建筑

jewel block dasher block  单饼小滑车

plummer-block (plumber block)  轴台

V-block (Vee-block)  V槽形块

vee block (V-block)  V槽块

(block) gerschgorin theorem  (块)圆盘定理

(Qi 9-Huan) 50 Block  齐9—欢50区块