The problems of free surface and bubble simulation of the transition section should be studied.
过渡段内水流的气泡及自由水面模拟等问题有待进一步研究。
Because there are some problems, the company is faced with the choice of transition strategy.
由于存在一些问题，公司面临着战略转型的抉择。
Because there are some problems, the company is faced with the choice of transition strategy.
由于存在一些问题，公司面临着战略转型的抉择。
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