The two dimensions of H in number 1~6 are the size of one line of cable gland and two lines of cable gland.
序号1~6中两种尺寸为接线箱中单行填料函排列和双行填料函排列。
December 17, 1949, opened with the laying of the first in London and Su Deng. Be between Amalfi Stewart TV cable. In 1951, the United States, h.
1949年12月17日,开通使用第一条敷设在英国伦敦与苏登。可尔菲尔特之间的电视电缆。
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