4 异方差检验 （ARCH TEST） 时间序列数据同样可能存在异方差。采用自回归条件异方差模型（ARCH model）进行异方差检验。
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arch test method 拱形法
Robust ARCH Test 稳健ARCH检验
compression superciliary arch test 压眉试验
Arch Effect Test Arch效应检验
arch dam model test 拱坝模型试验
arch test
拱测试
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Arch test method is characterized with briefness, economy, it also can be validated by other methods, so, it is widely used in the measurement of RF absorbing materials.
由于拱形法简捷、经济，又可以用其他方法加以验证，所以在射频吸波材料测量中得到广泛的应用。
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