【第 2 段建议】: 1. "SBM limestone crushing plant with a capacity of 700 tons an hour" 应更正为 "SBM limestone crushing plant with a capacity of 700 tons per hour"。 2. "selected SBM as partner" 应更正为 "selected SBM as a partner"。 3. "in local area" 应更正为 "in the local area"。 4. "Raw Material:Limestone" 应更正为 "Raw Material: Limestone"（在冒号后添加空格）。 5. "Capacity:600-700 t/h" 应更正为 "Capacity: 600-700 t/h"（在冒号后添加空格）。 6. "Output Size:0-5-10-20-31.5mm" 应更正为 "Output Size: 0-5-10-20-31.5 mm"（在冒号后添加空格，并在 "31.5" 和 "mm" 之间添加空格）。 7. "Major Equipment:PE Jaw Crusher, CI5X Impact Crusher, VSI6X Sand Maker, HST Cone Crusher, F5X Feeder" 应更正为 "Major Equipment: PE Jaw Crusher, CI5X Impact Crusher, VSI6X Sand Maker, HST Cone Crusher, F5X Feeder"（在冒号后添加空格）。 8. "The project is equipped with VSI6X sand maker, compared with traditional sand making equipment, its efficiency is increased by 30% while the wear is reduced by 40%." 应更正为 "The project is equipped with a VSI6X sand maker; compared with traditional sand making equipment, its efficiency is increased by 30%, while the wear is reduced by 40%."（在 "VSI6X sand maker" 之后添加 "a"，并用分号替换逗号，且在 "30%" 和 "while" 之间添加逗号）。 9. "its efficiency is increased by 30% while the wear is reduced by 40%" 可考虑使用 "its efficiency is increased by 30%, while the wear is reduced by 40%" 以增加清晰度。 10. "High automatic" 应更正为 "High automation"。