新增长途光缆27000皮长/公里,数字微波干线14400公里,电话交换机容量1961万门。
The total lance of long distance optical cable increases by 27000 sheet km, that of digital microwave links by 14,400 km and the number of telephone lines by 19.61 million.
新增长途光缆27000皮长/公里,数字微波干线14400公里,电话交换机容量1961万门。
The total lance of long distance optical cable increases by 27000 sheet km, that of digital microwave links by 14, 400 km and the number of telephone lines by 19.61 million.
手机发出的是“非离子化辐射”,类似于微波炉和无绳电话发出的那种。
Cell phones emit "non-ionizing radiation," similar to the kind produced by microwave ovens and cordless phones.
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