Time-Time-Time Switching Network TTT  时间-时间-时间交换网络

a long time  化学分析用电子能谱术; 依莉莎白·邓肯; 半响; 半天; 多时

a long time ago  很久以前

a long time failure of power  系列超长时间停限电

alkali refining with low-temperature and long-time  低温长混碱炼; 直接驱动阀

comprehensive management for long-time shut-in wells  长关井综合治理

considerable long time  相当长时间

Dinking for long time  长期饮用

efficiency for long time  长效

ever since a long time ago  长期以来

fail to be impregnated for a long time  久不受孕

for a long time  早已; 久违

High-temperture and long-time strength test  高温持久试验

long - time characteristic  长时性

Long Interval  长层段

long interval method  长间隔法

Long Time  长时间; 长期; 长久

Long time afterglow  长余辉

Long time aging  长期时效