control line
noun
1 Surveying a surveyed line which is used as a reference for subsequent measurements.
2A wire, cable, etc., by means of which a machine or device is controlled.
Origin
Late 19th century.
| 单词 | control line |
| 释义 | control linenoun 1 Surveying a surveyed line which is used as a reference for subsequent measurements. 2A wire, cable, etc., by means of which a machine or device is controlled. Origin |
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