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Inorganic chemicals
A broad class of substances encompassing all those that do not include carbon and its derivatives as their principal elements, yet not excluding carbides, carbonates, cyanides, cyanates, and carbon disulfide.
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拉馬茲
Health care; Women’s health
由 斐迪南拉馬茲博士開發的分娩的哲學。拉馬茲類的目標是提高婦女的信心在分娩的能力。拉馬茲類教婦女勞動，包括專注于的呼吸的簡單的應對策略。但拉馬茲也教呼吸的技巧是其中一個説明婦女在勞動中的很多東西。是另一些運動，定位、 勞動支援、 按摩、 鬆弛、 水療和熱與冷的使用。 ...
