definite time

基本解释

Since the 1920s, scientists have known the universe is expanding, which means it must have started at a definite time in the past.
自20世纪20年代以来，科学家已经了解到宇宙正在澎张。这就是说宇宙一定是在过去的某一特定时候开始形成的。
Then the suspension of PL was mixed with HA solution and the complex was obtained after stirring under a constant temperature for a definite time.
即首先利用薄膜分散超声破碎法制备PL水分散液，然后与HA的水溶液混合，恒定温度搅拌一定时间得到复合物。
Methods Analyse 46 thyroid stoym cases through their desease s inducement, diversified clinical expressionism, definite time and different extent delayed diagnosis.
方法通过对46例甲状腺危象患者的发病诱因、多样化临床表现、确诊时间及不同程度的延误诊断进行分析。

For some definite time he waited to see where he would land and how much it would hurt.
NEWYORKER: Tenth of December
By speeding up the cycle and giving it a definite time frame, Mr Ilyuzhinov's approach promises to increase media, and therefore public, interest in chess.
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While companies can generally hire employees relatively quickly to meet increasing demand, there is a definite lead-time to adding capital equipment.
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