The long - range change of drought and flood in the liao river basin 辽河流域旱涝长期变化的若干特征
Note : data of aricultural mechanization fluctuated largely in 2005 for the reason of the range changes 注: 2005年农机统计口径发生变化,农业机械化情况相关数据变动较大。
The changing trend of the range with season is not apparent , but the ranges change from 3 . 02m to 39 . 29m 变程的变化幅度大,在3 . 02m和39 . 29m之间波动,但季节变化趋势并不明显。
The theoretical calculation and the experimental result indicated that , after temperature compensation , this kind of new hotwire air mass flowmeter still had high measuring accuracy when the environment temperature had wide range change 理论计算和试验的结果表明,经环境温度补偿后,这种新型热线式空气质量流量计在大范围环境温度变化下仍具有较高的测量精度。
However , in the countries and districts where crime of seizing is considered as a kind of independent crime , its range changes according as the violence of robbing is required in various degrees and whether secretly stealing is one of constitutive requirements of theft 在专门设立了抢夺罪的国家和地区,对抢劫罪暴力程度的限定不同和对盗窃罪是否规定为秘密窃取,抢夺罪的外延随之存在宽窄之别。
But the phase changes many times of in while the range changes within a range - bin , thus ambiguity will occur in the phase measurement . to avoid the ambiguity in measuring the phase of the fft , the sampled data are divided into two segments , then apply fft on each segment of data separately ,因此可以用来估计距离(频率x但是由于两个fft的相位差随距离的变化比fft的相位本身随距离的变化慢很多,因此利用分段fft相位差估计距离要求fft相位测量误差很小,为此本文又提出了利用分段fft的相位差消除相位测量模糊而用其中一段fft的相位估计距离的方法。