2Scroll Compressor History and Development 2OPERATING PRINCIPLES................................ 3Geometry of a Scroll....................................... 3The Scroll Set ................................................. 3Compression Process ...................................... 4Compliance .....................................................
A: Your baby's heartbeat is one of the first things your doctor will look for on an ultrasound, a test that uses sound waves to give off visual images of your baby and placenta as well as your uterus and other pelvic organs.
How to Check Your Babyâs Heart Beat. Pregnancy can be one of the most exciting times in your life, filled with fun, hope, and enjoyment. And many pregnant women find that nothing is more exciting than hearing their babyâs heart beat for the first time! Throughout your pregnancy, your health care practitioner will monitor your babyâs growth and development as well as his heartbeat.