307
edits
Changes
no edit summary
====潜在问题====
— Poor-quality rope deteriorates quickly (e.g. sisal rope lasts for only a few months); 劣质绳子会很快损坏（如，琼麻绳只能用几个月）；<br>— The bucket falls into the well ... to prevent this, communities can keep a spare bucket and fit the bucket into a protective cage; 水桶可能会掉入井中……为了防止这一点，社区可以留一个备用的水桶，并放在保护笼中；<br> — The hose breaks frequently in windlass-and-hose systems; 绞盘和软管装置中的软管会时常破裂；<br>— Poor hygiene, especially when the rope or bucket touches users’ hands or the ground; 卫生状况不佳，尤其是绳子或水桶与使用者的手或地面接触后；<br>— Communal wells tend to become more contaminated than family-owned wells, and the latter should be promoted whenever possible; 公共的井比家庭拥有的井更容易遭受污染，只要有可能，就应当推行后者；<br>— The rope-and-bucket system is only suitable for limited depths.绳桶装置只适用于有限深度。
===成本===
