【第 1 段建议】: 1. "lmpact" should be "Impact" (the letter "l" is incorrect). 2. "High Weir Spiral Classifier" should have one space: "High Weir Spiral Classifier". 3. "Submerged Spiral Classifier" should have one space: "Submerged Spiral Classifier". --- 【第 2 段建议】: 1. "4.75mm" 应为 "4.75 mm"。 2. "75μm" 应为 "75 μm"。 3. "1, hydration" 应为 "1. Hydration"。 4. "but do not include soft and weathered particles" 处的 "but" 可考虑改为 "which" 以增强句子流畅性（建议）。 其余未发现错误。 --- 【第 3 段建议】: 1. “the more the better” should be enclosed in quotation marks for clarity: "the more the better." 2. In the sentence “the water consumption of per cubic meter of concrete,” it should be “the water consumption per cubic meter of concrete.” 3. Inconsistent use of commas: Change "3, water retention and thickening effect" to "3. Water retention and thickening effect." 4. In “the amount of stone powder should be appropriate,” it is better to specify “an appropriate amount” for clarity. 5. The phrase “is also limited by the composition of cement” might be clearer as “is limited by the composition of cement.” 6. In "the stone powder content," it should consistently refer to either "stone powder" or "the stone powder" throughout for clarity. 7. In “the dry screening method is adopted in the secondary screening workshop,” "adopted" would sound better as "used." Please revise these points for accuracy and clarity.