W8JK对于多波段来说，是一种不用陷波器(TRAP)和加载线圈(Loading coil)的天线，但多个波段的阻抗还是不同的，所以还是无法直接在都个波段上直接获得2：1的SWR。而要依靠匹配和调整的方法。
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loading coil pot 加感线箱圈
fractional loading coil 分数加感线圈
loading coil box 加感箱
aerial loading coil 天线加感线圈
telephone loading coil [通信] 电话加感线圈
loading coil hat 加感箱
phantom-circuit loading coil [电子] 幻像电路加感线圈
side circuit loading coil 实线电路加感线圈
N an inductance coil inserted at regular intervals and in series with the conductors of a transmission line in order to improve its characteristics 加感线圈
Apply to differential slip shaft what full-automatic loading and unloading coil stock, ensure the volume do not shift and loose while counter rotating.
适用于全自动装卸卷料的滑差轴，保证正反转时卷芯不移位，不松动。
The filler is downstream of the coil to prevent snow from loading in severe winter storm weather.
过滤器安排在盘管的下风侧。这样在严冬风雪天气时，可以防止积雪。
The traditional un coiler has no coil preparation function, and the coil loading and uncoiling process are conducted once.
传统拆卷不具备备卷功能，工作过程中钢卷的上料、拆卷一次完成。
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