signal line
noun
Any of various types of cable, wire, etc., by which a signal is sent; (Diving ) = lifeline.
Origin
Mid 19th century; earliest use found in Waldie's Select Circulating Library.
| 单词 | signal line |
| 释义 | signal linenoun Any of various types of cable, wire, etc., by which a signal is sent; (Diving ) = lifeline. Origin |
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