Comparing with the developed countries, the agricultural water in China is large and its efficiency is very low.
与发达国家相比，我国农业用水量大且效率很低。
Comparing with the developed countries, China has some gaps in the fields of lightning studying, forecasting and detecting.
目前我国在雷电监测、预测和研究方面还比较薄弱，特别是在监测领域，与发达国家有较大差距。
At present, the die and mould technology and the service life of dies and moulds in China still have a large gap comparing with that of the developed industry countries.
目前，我国的模具技术及模具寿命与一些工业发达国家相比，仍存在较大差距。
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