We have significantly improved our observing systems over recent years through particularly satellite systems but there is still major gaps particularly in the deep ocean.

我们近几年已大大改善了我们的观测系统，特别是借助卫星系统，但仍有很大的差距，尤其是在深海区域。

youdao

Major gaps exist between what is available in countries and what is needed.

在国家已有的设备和具有的需求之间存在着很大差距。

youdao

"I don't see a need to overhaul the regulations. The regulations cover the major causes of pipeline failures,and we do not see any gaps."

VOA: special.2011.07.08

While disclosure has improved somewhat in recent years, there are still major gaps and inconsistencies in reporting.

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And they were able to do all that because of major gaps and loopholes in our regulations.

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But the militants lacked crucial technical details and showed major gaps in their knowledge, suggesting any information they had wasn't from someone highly placed.

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