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。

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

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但是丹佛可以参考多伦多的做法，因为两座城市气候和人口密度更为相近，而多伦多的人均二氧化碳排放量只有11.6吨。

But it might learn from Toronto, which emits 11.6 tonnes of carbon dioxide per person and is closer to Denver in climate and population density.

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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。

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.

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