气体的反应体现在氧化钙上。

The gas is fed back over the calcium oxide.

采购产品使成水化合物石灰，生石灰，消石灰，氧化钙，碳酸钙，化学品。

Hydrated lime, Quicklime, Calcium Hydroxide, Calcium oxide, Calcium Carbonate, Refractory Products Chemical Supplies.

生石灰、熟石灰及水硬石灰，但税目28.25的氧化钙及氢氧化钙除外。

Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading No. 28.25.

干燥剂，脱水剂：一种对水有很强吸附性的物质，常用作干燥剂例如：氧化钙，锗化硅等。

A substance, such as calcium oxide or silica gel, that has a high affinity for water and is used as a drying agent.