An Introduction to Stress and Strain
10:02
YouTubeThe Efficient Engineer
An Introduction to Stress and Strain
This video is an introduction to stress and strain, which are fundamental concepts that are used to describe how an object responds to externally applied loads. Stress is a measure of the distribution of internal forces that develop within a body to resist these applied loads. There are two main types of stress - normal stress, which acts ...
已浏览 178.8万 次2020年2月11日
Echocardiogram Explained
Echocardiogram Explained: Easy Heart Test Guide
1:11
Echocardiogram Explained: Easy Heart Test Guide
YouTubeHealocity
已浏览 488 次3 个月之前
What to expect for an echocardiogram
0:57
What to expect for an echocardiogram
YouTubeMichigan Medicine
已浏览 44.2万 次2023年2月24日
Echocardiogram (Echo) Testing and Diagnosis - Ask Mayo Clinic Health System
1:30
Echocardiogram (Echo) Testing and Diagnosis - Ask Mayo Clinic Health System
YouTubeMayo Clinic Health System
已浏览 869 次2023年12月29日
热门视频
How stress affects your body - Sharon Horesh Bergquist
4:43
How stress affects your body - Sharon Horesh Bergquist
YouTubeTED-Ed
已浏览 854.8万 次2015年10月22日
How to make your stress work for you - Shannon Odell
5:29
How to make your stress work for you - Shannon Odell
YouTubeTED-Ed
已浏览 58.3万 次2024年12月10日
How stress affects your brain - Madhumita Murgia
4:16
How stress affects your brain - Madhumita Murgia
YouTubeTED-Ed
已浏览 840.6万 次2015年11月9日
Echocardiogram Results
Echocardiogram 🫀 | Normal vs Abnormal Heart Function Explained
0:08
Echocardiogram 🫀 | Normal vs Abnormal Heart Function Explained
YouTubePhlebotomy Pro Tips: Nurses
已浏览 1365 次3 个月之前
Echocardiogram
0:45
Echocardiogram
YouTubeNetwork Science and Graph
已浏览 60 次2024年6月15日
Echocardiogram Understanding Heart Health with Sound Waves
0:21
Echocardiogram Understanding Heart Health with Sound Waves
YouTubeWorld health day
已浏览 25 次6 个月之前