对于时钟发生器，频谱纯度是最重要的参数；对于频率合成器，频带宽 度和调频通道间距（Channel spacing）二者的综合指标是最关键的参数。
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... 通道间互调变 interchannel intermodulation 通道间距 interchannel interval 通道间调变 interchannel modulation ...
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... 信道间噪声 interchannel noise 通道间距 interchannel spacing 通道间时基误差 interchannel time base error ...
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两个通风道之间的距离 duct pitch
本文以雪峰山隧道为工程实例，阐述了一种计算横通道间距的方法，并简述了该方法的应用。
A calculate method of cross passage interval in detail using Xuefengshan Tunnel as an object example is described, and the application of the calculate method is also given out briefly.
通过计算表明，换热器通道间距、 空气的迎面风速，以及一次风的干球温度的变化对换热器效率有很大的影响；
The effects of the plate spacing, approach velocity and the primary air temperature on evaporative cooler was predicted theoretically.
埋压、圈占消火栓或者占用消防间距、堵塞消防通道的，或者损坏和擅自挪用、拆除、停用消防设施、器材的；
Those who bury, occupy fire hydrant or occupy fire prevention space, block fire control passageway, or damage and arbitrarily use, dismantle and stop use fire control facilities and devices;
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