phase of exploration

now oil has entered a delicate phase of exploration, geological research the requirements of increasingly high.

现在油田已经进入精细勘探阶段，对地质综合研究的要求也越来越高。

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the xingtai earthquake 1966, under the leadership of premier of zhou enlai, china's seismic prediction entered a phase of exploration.

1966年邢台大地震后，在周恩来总理的领导下我国进入地震预报的探索阶段。

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the lieh-tzu's "spiritual" touched a dream house, but also for the next phase of exploration has laid a solid foundation.

而列子的“神游”触及了梦的内部，也为下一步的探索打下了坚实的基础。

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