How to raise our agriculture products' competition in international market is a focal point theoretical circle.
我国农产品在国际市场如何提高竞争力是理论界所关心的焦点。
The results indicate that flat-top beam shaping and single-circle beam shaping at the focal plane can all be realized by using three-zone annular phase pupil filters.
模拟结果表明，利用三环相位光瞳滤波器，不仅可以在焦面上实现光强的平顶分布，而且还可以得到单环衍射光束。
The substituting country's system derived out fuzzily and directly legislating because of "anti-dumping agreement" has been the focal point that the theory circle has criticized all the time.
由于《反倾销协议》立法的模糊而直接衍生出来的替代国制度一直是理论界批评的重点。
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