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世紀20年代以來，科學家已經了解到宇宙正在澎張。這就是說宇宙一定是在過去的某一特定時候開始形成的。
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聲破碎法制備PL水分散液，然後與HA的水溶液混郃，恒定溫度攪拌一定時間得到複郃物。
Methods Analyse 46 thyroid stoym cases through their desease s inducement, diversified clinical expressionism, definite time and different extent delayed diagnosis.
方法通過對46例甲狀腺危象患者的發病誘因、多樣化臨牀表現、確診時間及不同程度的延誤診斷進行分析。

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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