煤炭、石油、天然气都是不可再生资源，如何提高能源利用率、节约矿产资源显得更加重要。
Coal, petroleum and natural gas are unrenewable resources, so it is important to improve energy utilization and save mineral resources.
对油田在用加热炉进行节能监测，是石油企业提高设备能源利用率的一项基础工作。
Energy-saving monitoring of oil field heating furnace is one of the basic work which can improve the equipment energy efficiency in petroleum enterprises.
提高石油资源利用率的关键是要把减压渣油最大限度地转化为运输燃料，特别是柴油。
The key to raising the efficiency of use of oil resources is to maximize the conversion of vacuum residue to transport fuels, particularly diesel oil.
提高石油资源利用率的关键是要把减压渣油最大限度地转化为运输燃料，特别是柴油。
The key to raising the efficiency of use of oil resources is to maximize the conversion of vacuum residue to transport fuels, particularly diesel oil.
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