Youtube上的频道如 MaterialsScience2000



25,600 1.84%

726,000 2.06%

3,210,000 2.78%

17,800 3.11%

21,000 2.25%

3,390,000 1.13%

524,000 2.7%

20,400,000 2.43%

10,100,000 2.99%

745,000 2.59%

10,500,000 3.02%

14,100 1.55%

8,730 0.97%



132,000 2.38%

45,300 0.56%

52,700 3.49%

416,000 1.79%

499,000 3.73%

136,000 2.0%

130,000 2.77%

52,800 1.21%