The forerunner cutting technique 先进切削技术
hydraulic forerunner control technique 先导控制
technique forerunner
技术先行者
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Lamarr termed the technique "frequency hopping, " a forerunner of the spread-spectrum technology that is used today in communications applications such as Wi-Fi.
WSJ: Book Review: Hedy's Folly
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