timing sign-off时序终止
Launch Sign-Off投产验收
sign-off广播完毕;签署同意;签收;签证
Single Sign-Off单点登出
sign sb off开假条
You Sign It Off你签字就自己
FSFinal Sign-off最终验收
Deliverable Sign-off项目交付项目验收
LSLaunch Sign-Off投产验收
V(动词) to announce the end of a radio or television programme, esp at the end of a day 宣布结束广播