History of the USS San Francisco. The USS San Francisco is a Los Angeles Class nuclear submarine and had a billion dollar price tag when it was built in the 1970s. Los Angeles class submarines were built from 1976-1996, with 62 completed and 39 still in service today, one of which is the USS San Francisco. These submarines have an estimated maximum speed of 30-33 knots, although the exact speed is classified. The USS San Francisco has an operational depth of 650 feet.
Full Definition of WHITE BLOOD CELL. : any of the blood cells that are colorless, lack hemoglobin, contain a nucleus, and include the lymphocytes, monocytes, neutrophils, eosinophils, and basophils âcalled also leukocyte, white blood corpuscle, white cell.See white blood cell defined for English-language learners.ull Definition of WHITE BLOOD CELL. : any of the blood cells that are colorless, lack hemoglobin, contain a nucleus, and include the lymphocytes, monocytes, neutrophils, eosinophils, and basophils âcalled also leukocyte, white blood corpuscle, white cell. See white blood cell defined for English-language learners.
Monocytes and neutrophils are phagocytic. The number of leukocytes in the blood is often an indicator of disease, and thus the WBC count is an important subset of the complete blood count. The normal white cell count is usually between 4 and 11 Ã 10 9 /L.In the US this is usually expressed as 4,000â11,000 white blood cells per microliter of blood.hite blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.