禹山坞稻田普遍使用化学除草剂，杂草种数明显少于城北村，水竹叶成为禹山坞稻田的优势种；
Application of herbicides to paddy field at Yushanwu was widespread which resulted in less weed species than that at Chengbei.
广州员村热电厂化学除盐系统自投产以来，阳床再生效果不理想，经常出现再生不合格现象，酸耗较高。
The demineralizing system in Guangzhou Yuancun Cogeneration Power Plant used to have problems of failed reclamation and high acid consumption.
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