To prevent un-dissolved grume forming, add the agent bit by bit while agitating the water.

向水里缓慢少量地加入固沙剂粉末，边倒边搅拌，防止形成凝块。

youdao

To prevent un-dissolved grume forming, add the agent bit by bit while agitating the water.

向水里缓慢少量地加入固沙剂粉末，边倒边搅拌，防止形成凝块。

youdao