... 电话频率 telephone frequency 电话机盒 telephone jacks 电话线 telephone line ...
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电话机接线盒 telephone connect wire box
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用一根连线把两个罐头盒串起来，线的两端各自固定在每个罐头盒底部的小孔上，拉紧以后，就做成了相距几码远的很好的一部电话机。
Two tins, connected with string fixed through a hole in the bottom of each tin and stretched tight, form a good telephone over a few yards.
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