How to write 钙

钙 gài 名词 1. A metallic element that is silvery-white and crystalline in form, with malleability. Calcium compounds have extensive applications in industry, construction, and medicine. 钙 gài 名词 2. A relatively soft, silvery-white, divalent metal element of the alkaline earth group that quickly loses its luster in air and burns with a bright flame when heated. It is primarily used in alloys and various metallurgical processes and commonly serves as a deoxidizer. In nature, it does not exist in a free state, but rather in compound form within certain minerals and rocks, especially found in the form of carbonates (such as limestone), sulfates, or phosphates in natural waters and in most plants and animals, where it serves as an essential component (English: calcium) — element symbol Ca. Examples: calcium deficiency; calcification.