Unbound and hydraulically bound mixtures - Part 4: test methods for laboratory reference density and water content - Vibrating hammer.

松散的和液力粘合的混合料。第4部分：实验室参考密度和水含量的测试方法。振动锤。

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But if above positive real condition is satisfied only within some frequency range, the convergence of FXLMS algorithm is dependent on the spreading of power spectral density of the reference signal.

若上述正实条件仅在某些频带上满足，则FXLMS算法的收敛将依赖于参考信号功率谱密度的分布。

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A novel synchronization protocol is presented, giving the extension of third party reference broadcast and concerned with the deployed density of WSN nodes.

在第三方参考广播协议的基础上，提出了一种基于节点密度的时间同步协议。

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Finally, a few more specs are detailed in the hope of enticing tech-minded shoppers, with reference to a Snapdragon S4 processor, a 1, 800mAh battery and a 356 pixel density that tallies with what we've already seen of the 4.2-inch 720p screen.

ENGADGET: Leaked BB 10 sales training manual reveals a few more specs, promises 70K apps at launch

And that geometrical prediction was confirmed directly by the Sloan survey, using the known distances of 500m light years to the density peak and 13 billion light years to the region where the microwave background originates as reference points to look for geometrical distortion, in the way that a more traditional land survey might use triangulation points.

ECONOMIST: Astronomy