docking keel block  龙骨垫座

keel block wedge  龙骨墩楔

keel-block capping timber  龙骨墩顶木

keel-block load  龙骨墩载荷

keel-block pressure  龙骨墩压力

lying on the keel block  坐墩

side keel block  边龙骨墩

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