We can work out positions of a harmonic oscillator by numerical methods .

我们可以按数值方法计算简谐振子的位置。

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Since the first crystal oscillator came out in the early 1920s, the technique of crystal oscillator has been greatly improved and has been widely used.

自20世纪20年代初国外第一台石英晶体振荡器问世至今，石英晶体振荡器技术已经日渐成熟，应用范围也越来越广泛。

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To gain lower phase noise of local oscillator, the design work of circuit is carried out based on the analyse of the key factors that affect the phase noise level.

为获得更低的相位噪声，在对影响本振相噪关键因素分析的基础上进行电路的设计。

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In addition, after 13 out of 15 negative days in the Dow Jones Industrial Average, the McClellan Oscillator reached -75, a level where we often see a bounce.

FORBES: Japan Downgrade Does Not Derail Stock Market From Chugging Higher