wide shot man in cramped white box crawling around with tangled ream of computer paper - 電腦用紙 個影片檔及 b 捲影像00:08
muscle: chemistry of contraction - part 25 of 26. what part of the muscle contracts and what triggers the contraction? with the aid of an electron microscope and a simple tabletop model of muscle filaments, dr. georges r. marchal, universit de louvan, - 電腦用紙 個影片檔及 b 捲影像00:26人體構造
muscle: chemistry of contraction - part 24 of 26. what part of the muscle contracts and what triggers the contraction? with the aid of an electron microscope and a simple tabletop model of muscle filaments, dr. georges r. marchal, universit de louvan, - 電腦用紙 個影片檔及 b 捲影像00:28人體構造
muscle: chemistry of contraction - part 23 of 26. what part of the muscle contracts and what triggers the contraction? with the aid of an electron microscope and a simple tabletop model of muscle filaments, dr. georges r. marchal, universit de louvan, - 電腦用紙 個影片檔及 b 捲影像00:37美國
muscle: chemistry of contraction - part 22 of 26. what part of the muscle contracts and what triggers the contraction? with the aid of an electron microscope and a simple tabletop model of muscle filaments, dr. georges r. marchal, universit de louvan, - 電腦用紙 個影片檔及 b 捲影像00:29
muscle: chemistry of contraction - part 21 of 26. what part of the muscle contracts and what triggers the contraction? with the aid of an electron microscope and a simple tabletop model of muscle filaments, dr. georges r. marchal, universit de louvan, - 電腦用紙 個影片檔及 b 捲影像00:34
muscle: chemistry of contraction - part 20 of 26. what part of the muscle contracts and what triggers the contraction? with the aid of an electron microscope and a simple tabletop model of muscle filaments, dr. georges r. marchal, universit de louvan, - 電腦用紙 個影片檔及 b 捲影像00:30人體構造
