资讯

Verywell Health on MSN16 年
The Diaphragm: Anatomy and Function
Medically reviewed by Sanja Jelic, MD The diaphragm is a dome-shaped muscle that separates the chest from the abdomen. This ...
Business Insider3 年
A diaphragm is a reusable, non-hormonal birth control option — here's how it works
A diaphragm is a silicone, cup-like object that you insert into your vagina to cover your cervix. Diaphragms must be used in conjunction with spermicide, which is a sperm-killing gel. A diaphragm ...
Hackaday4 年
Diaphragm Air Engine
Instead of trying to make an air-tight piston, he added a rubber membrane and a clever valve system to create a diaphragm air engine. This GIF is worth 115 words A round rubber diaphragm with a ...