-
6532
2015-09-08 15:31
447
2
2009 2007 2008
20
90%
20
1946-1950
270 桶 30
1.5
传动带
1940 1980
40
1300
︽ ︾
1965
1966-1976
︽ ︾
1947 1958
摩尔定律
反馈)
20
156
技术扩散
1957-1970
︽
︾
技术扩散
︽
︾
︽ ︾ 20
1973 ︽43
︾ 3-5 43
20 43
156 技术扩散
51.4
200 27 1982
-
2015-09-10