| 单词 | dead earth |
| 释义 | > as lemmasdead earth dead earth n. a complete or very low-resistance electrical connection with the earth (see quots.). ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > conduction to earth > [noun] > low-resistance dead earth1863 dead ground1910 1863 R. S. Culley Handbk. Pract. Telegr. vii. 105 Dead Earth. All the current passing through the fault... No signal whatever beyond the fault. 1882 R. M. Ballantyne Battery & Boiler (1883) x. 102 We have found dead earth. 1910 Hawkins' Electr. Dict. 109/1 Dead earth, in telegraphy, a fault in the line involving a complete grounding or connection with the earth; a total earth. 1914 Work 26 Sept. 490/2 When cables are earthed intentionally the connection is complete, or a ‘dead earth’. There are also ‘partial earths’ when a cable..leaks. < as lemmas |
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