剩下的是重油，被用来作为燃料。
如重油、原油、工业轻油、柴油等。
重油系统溢流观察报警器；
现在将重油换成轻油。
重油深度加工是合理利用石油资源的重要途径。
Heavy oil processing is a very important way to make reasonable use of petroleum resource.
将重油换成轻油。
这台发动机类似目前的单作用煤气和重油发动机。
This engine resembled present single-acting gas and oil engines.
在一次采油期间用于重油油藏的一种井增产处理方法。
A well stimulation method used on heavy oil reservoirs during primary recovery.
对重油掺水乳化的实质及乳化油燃烧过程进行了探讨。
Theory of water-blend heavy oil and combustion mechanism were discussed.
这是一个丰富，重油，认为这是最混纺与其他承运人的油。
It is a rich, heavy oil that is best blended with other carrier oils.
锅炉适用轻油、重油、天然气、液化气、城市煤气等燃料。
Boiler can use light oil, heavy oil, natural gas, liquefied gas and urban coal gas.
锅炉适用轻油、重油、天然气、液化气、城市煤气等燃料。
Boiler can use light oil, heavy oil, natural gas, liquefied gas and urban coal gas.
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