Gypsum powder is widely used in the following industries and has different functions:

1. 建筑行业：石膏粉在建筑行业中被广泛用于制作墙面、天花板和隔墙。它可以用于抹灰、砌块粘结、填缝和修补工作中。石膏粉还可以用于制作装饰性元素，如浮雕、花瓶和线条。

1. Construction industry: Gypsum powder is widely used in the construction industry to make walls, ceilings, and partitions. It can be used for plastering, block bonding, joint filling, and repair work. Gypsum powder can also be used to create decorative elements such as reliefs, vases, and lines.

2. 医疗行业：医疗石膏是一种特殊的石膏粉，用于制作石膏固定器和石膏包扎，用于治疗骨折、扭伤和其他骨骼损伤。它具有良好的固化性能和透气性，有助于保护和稳定骨骼。

2. Medical industry: Medical plaster is a special type of plaster powder used for making plaster fixators and plaster dressings, used to treat fractures, sprains, and other bone injuries. It has good curing performance and breathability, which helps to protect and stabilize bones.

3. 艺术和手工业：由于石膏粉易于加工和塑造，它在艺术和手工业中得到广泛应用。石膏粉可以用于制作雕塑、模型、艺术品、模具等。它可以通过雕刻、浇铸、涂覆等方式进行加工和装饰。

3. Art and handicrafts: Due to the ease of processing and shaping of gypsum powder, it is widely used in art and handicrafts. Gypsum powder can be used to make sculptures, models, artworks, molds, etc. It can be processed and decorated through carving, casting, coating, and other methods.

4. 农业：石膏粉在农业领域中有重要的用途。它可以用于土壤改良，特别是酸性土壤的中和和钙离子的补充。石膏粉对土壤有利的作用包括改善结构、增加通气性、调节pH值、提供钙元素等。

4. Agriculture: Gypsum powder has important applications in the agricultural field. It can be used for soil improvement, especially for neutralizing acidic soils and supplementing calcium ions. The beneficial effects of gypsum powder on soil include improving structure, increasing aeration, regulating pH value, and providing calcium elements.

5. 环保行业：石膏粉还被广泛应用于环保领域。它可以用于处理工业废水和废气，去除其中的污染物。此外，石膏粉还可以用于制备过滤材料和吸附剂，用于水处理和废弃物处理。

5. Environmental protection industry: Gypsum powder is also widely used in the field of environmental protection. It can be used to treat industrial wastewater and exhaust gas, removing pollutants from them. In addition, gypsum powder can also be used to prepare efficient filtration materials and adsorbents for water treatment and waste treatment.

总的来说，石膏粉在建筑、医疗、艺术、农业和环保等行业中具有重要的应用价值，可以满足不同行业的需求，并发挥相应的作用。

Overall, gypsum powder has important application value in industries such as construction, healthcare, art, agriculture, and environmental protection, which can meet the needs of different industries and play corresponding roles.