因此将机内净化和排气后处理有机的结合起来成为未来解决柴油车排放问题的主要技术手段。
Therefore, organic combination of the internal Purification and exhaust emissions after-treatment become the future solution methods of diesel exhaust emissions.
虽然一些机内净化措施和排气后处理技术可以一定量的减小排放污染，但是如何从根源上控制排放仍然是一项艰巨的任务。
How to control the emission from the root is still a hard task, although the existing inboard purifying measures and after treatments can reduce some pollution.
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