The antenna and cable must be carefully matched to ensure a low Standing Wave Ratio ( SWR ).
小心地将天线与电缆匹配,以确保低定波比率 ( SWR ).
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But the most well-placed competitor is Packet over SONET.
但是最强有力的竞争者是PacketoverSONET( 同步光缆网上传送包).
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本公司主要生产、经营:园艺剪 、 铁皮剪 、 航空白铁剪及电缆剪等.
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Only take core line lightly then can shrinkage automatically it is very easy to mount.
采用冷缩电缆附件,无需明火及特殊工具,只需轻轻抽取芯绳即可,就能自动收缩复位,安装非常方便.
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Single-core non-sheathed cable with rigid conductor for general purposes, as table 2 shows.
一般用途单芯硬导体无护套电缆, 如表2.
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PVC insulated and PVC ( PE ) sheathed fine steel wire armoured power cables.
聚氯乙烯绝缘、聚氯乙烯 ( 聚乙烯 ) 护套细钢丝铠装电力电缆.
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Copper conductor , XLPE insulated, steel wire armoured and PVC sheathed power cable.
室内 、 隧道、电缆沟 、 竖井或埋地敷设等,能承受机械外力和一定的拉力.
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