のようなYouTubeチャンネル Oak Ridge National Laboratory


27,000 2.71%

10,500,000 3.02%

332,000 1.05%

3,210,000 2.78%




7,800 3.91%


59,600 2.78%

124,000 1.55%


1,150,000 2.8%

524,000 2.7%

57,500 2.0%

299,000 4.11%

1,580,000 2.94%

2,450,000 2.4%