The result show that, under the same condition:the diesel engine has a best injection timing which makes the emission of soot least.
结果表明，相同条件下：柴油机存在一个最佳喷油提前角使碳烟排放最少；
The result show that, under the same condition:the diesel engine has a best injection timing which makes the emission of soot least.
结果表明，相同条件下：柴油机存在一个最佳喷油提前角使碳烟排放最少；
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