Besides, this result indicates that addition of citric acid has an obvious setting retarding effect on gypsum but may reduce the mechanical performance of its products.
掺加柠檬酸对石膏具有明显的缓凝作用，但同时使制品的力学性能降低。
Besides, this result indicates that addition of citric acid has an obvious setting retarding effect on gypsum but may reduce the mechanical performance of its products.
掺加柠檬酸对石膏具有明显的缓凝作用，但同时使制品的力学性能降低。
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