A principal channel, duct, or conductor for conveying water, sewage, gas, or (usually in plural) electricity. Cf. main, adj.2 5a, mainsborne, adj.…
| 单词 | θ77928 |
| 释义 | the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [noun] > cable > supplying the public (7) main1879 A principal channel, duct, or conductor for conveying water, sewage, gas, or (usually in plural) electricity. Cf. main, adj.2 5a, mainsborne, adj.… Subcategories:— with wide safety margin (1) — allowing alternative path (1) — inside building (2) — branch-wire (2) |
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