样品经湿法消化后，在酸性溶液中，钙与草酸生成草酸钙沉淀。

The sample was digested in the acidic solution and then the calcium reacted with oxalic acid to form calcium oxalate.

youdao

煮沸后的牛奶和磷酸钙沉淀现象的发生，减少了牛奶的营养价值。

After boiling the milk and the calcium phosphate precipitation phenomena occur, reducing the nutritional value of milk.

youdao

轮藻形成碳酸钙沉淀，这些沉淀可形成湖泊钙质泥灰岩的主要成分。

Stoneworts contain calcium carbonate deposits so extensive that they may form the major part of lake bottoms.

youdao