Check-off clause  代扣条款

check-off list  核对清单; 查讫单; 检验单; 检查表

compartment check-off list  舱间检查表

Compulsory check-off clause  强制代扣款项

method of check-off  注销法

Voluntarily check-off clause  自愿代扣条款

check digit check  检验位检验

Check in and check out  检入、检出功能

check sum check  校验和校验

machine check and program check  机器检查与程序检查

allowable shut-off time of fast shut-off valve  快速切断阀的允许切断时间

fall off [= bear off]  撑开; 转向下风

hang off [= stop off]  [暂时]挽位; 港外短暂逗留

Off beat takes off  走板起跳

Off-Line Handwritten Chinese Character Recognition (off-line HCCR)  脱机手写汉字识别

off-line trusted third party (off-STTP)  离线半可信第三方

Off-on-off  关－开－关

one-off write-off  一次过撇帐

voltage cut off or current cut off  截压截流