国内的机制砂设备开发与国外先进水平相比还存在一定差距。
Domestic mechanism sand blasting equipment development and international advanced level compared still exist certain disparity.
在近十年的时间里，我国皮划艇激流回旋项目正在迅速崛起，但与世界强国相比还存在一定差距。
Although canoe slalom has been developing rapidly in the past ten years in China, there's still a wide gap between developed countries.
本文就河南玉米、全国玉米、世界玉米单产、总产、种植面积进行了比较，发现河南、全国玉米还存在一定差距。
Maize in Henan, maize of all of the country, world maize single yield, total yield and planting areas have been compared in this article.
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