0071 - Worker-technicians Tsao Mu-chuan(R) and Chang --- in charge of the t...Front
Worker-technicians Tsao Mu-chuan(R) and Chang --- in charge of the trial manufacture of China's first --- a magnification of 200,000 times are ---.
Image details
| Front | Yes |
|---|---|
| Place | |
| Year | 1968 |
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