... 入侵逾渗||invasion percolation 软弹簧||soft spring softening spring 软激励||soft excitation ...
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讨论了有界噪声激励对软弹簧杜芬振子的倍周期分岔至混沌运动的影响。
The effects of stochastic excitation on the period-doubling bifurcation and chaotic motions of the softening Duffing oscillator, are discussed in detail.
控制供应管道的水压。在总成的上游安装一个软阀座，弹簧负载止回阀。
Control supply line water pressure. install a soft seated spring loaded check valve upstream of the assembly.
然后，用以对此规格的钢丝制造的气阀弹簧进行了低温液体软氮化处理。
Then, pneumatic valve spring made from this spring steel wire have been treated by this investigation of liquid tufftriding process.
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