In a period of time, the market supply is fixed, and leasing needs at any time to change.
在一个时期以来，市场供应是固定的，和租赁的需求在任何时候改变。
We drew a conclusion that in a period of time and special condition, the HAc made by ethylene oxidation will still exist in the market, but it will change from the protagonist to the stooge.
得出了乙烯法的冰醋酸虽然在一定时期内和一定的条件下，还将存在于市场之中，但已从主角转变为配角的结论。
Viral myocarditis video ad is a relatively new market, and in just a short period of time trying to change the rules of traditional advertising.
病毒性心肌炎视频广告是一种较新的市场，并在短短短的时间设法改变规则的传统广告。
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