range band

When the detection range of the IR thermal imager is calculated by using NETD, the target radiation brightness difference must be calculated in the operating wave band.

在采用NETD计算红外热像仪的探测距离时，需要计算目标在热像仪探测波段范围内的辐射亮度差。

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Optical current transformer ( OCT) is regarded as a perfect substitute for traditional current transformer because of its inherent advantages such as high electrical insulation, broad frequency band, large dynamic range, small volume, light weight and so on.

光学电流互感器（OCT）具有绝缘性能好、频带范围宽、动态范围大、体积小、重量轻等优点，被认为是传统电磁式电流互感器（CT）的理想替代品。

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A band of caribou passed by, twenty and odd animals, tantalizingly within rifle range.

一群驯鹿走了过去, 大约有二十多头, 都呆在可望而不可即的来福枪的射程以内.

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However, the band gap of TiO2 is so wide that it greatly limits the use of sunlight as an energy source for the photoreaction since only about 3-4% of solar light falls in the UV range.

然而，TiO2的禁带太宽，以至于它的光催化活性仅局限于紫外光区，限制了它在太阳光下的应用。

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General harmonic wavelet is an ideal band-pass filter , due to selecting frequency range discretionarily.

广义谐波小波可任意选取频带,是理想的带通滤波器.

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Broadband: A band of light wave or sound wave with a wide range of frequencies.

阔波段: 频率范围广的一段光波或声波.

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The two ultra-high frequency outer antenna sensors are made with wide band and narrow band respectively. The gain of two sensors is both greater than 1 and VSWR of the sensors is less than 2 in effective bandwidth range.

研制了宽带和窄带两种超高频外置天线传感器，两种传感器增益均大于1，驻波比在其有效带宽范围内均小于2，均能用于GIS局部放电超高频检测。

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Investors will be able to central line of the band range of profit-taking.

投资者可在“中线波段”位区间获利了结.

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Results show the imaging quality is near the diffraction-limitation in visible spectrum and arrived in infrared spectrum. So the off-axis three-mirror reflective is able to work in the multi-band from the visible spectral region to infrared range.

从评价结果来看，在可见光波段，像质接近衍射极限，在红外波段成像质量基本达到了衍射极限，充分说明了离轴三反射光学系统具备从可见光到红外多波段工作的能力。

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