原味牛奶很重要，因为它可以很好的提供钙。

Plain milk is also important, as it provides a good source of calcium.

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其原岩岩石类型有火山岩，陆缘碎屑沉积岩，火山、岛弧拉斑系列或钙堿系列火山岩、蛇绿岩等。

Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series.

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方法将致密丝素膜、多孔丝素膜和对照组的牛心包、蚀原海绵行复钙、溶血和血小板粘附试验。

Methods Recalcification, hemolysis and platelet adhesive test were conducted for the compact silk membrane, porous silk membrane, bovine pericardium and collagen sponge.

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