机车柴油机烧低十六烷值柴油具有很重要的现实意义。
The steam locomotive has been superseded by the diesel locomotive.
本论文对此相关问题的研究无疑具有很重要的现实意义。
In this paper, research on the relevant issues undoubtedly has an important practical significance.
所以，研究尘土颗粒对电接触可靠性的影响具有很重要的现实意义。
So it is very important and necessary for us to research the influence of dust on electric contact.
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