“harpoon log”的概念、定义、翻译、参考文献-科学参考

单词	harpoon log
释义	harpoon log [här`pün ´läg] ^ENGINEERING A log which consists essentially of a rotator and distance registering device combined in a single unit, and towed through the water; it has been largely replaced by the taffrail log; the two types of logs are similar except that the registering device of the taffrail log is located at the taffrail and only the rotator is in the water.
随便看	dual in-line package duality principle duality theorem dual laser dual linear programming dual meter dual-mode control dual modulation dual network dual operation dual-purpose gun dual-purpose reactor dual radioactive decay dual-seal tubing joint dual space dual tensor dual theorem dual thrust dual-thrust motor dual-tone multifrequency dual-trace amplifier dual-trace oscilloscope dual-track tape recorder dual-use line dual variables

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