The arrangement and size of the ports in an internal combustion engine; the adjustment or alteration of these.
| 单词 | θ214076 |
| 释义 | society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [noun] > arrangement of ports (1) porting1948 The arrangement and size of the ports in an internal combustion engine; the adjustment or alteration of these. |
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