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当突然暴发洪水时,人们不可能把沙袋之类的惯用障碍物放入适当的位置,则沿河一带的居民可能难以及时保护自己。退休的航天工程师达尔克说,当遇到这种情况时,为什么不采用他的泥浆软管或充水软管的抗洪方法呢。这位工程师声称,使用他的这个方法,可以在比较短的时间内抵御洪水的猛涨。他设计的软管是用塑料或结实的防水织物制成。如用泥浆充填软管,可长时间地形成任一长度的障碍物来进行抗洪;如用水充填,则只能短时间的进
When a sudden outbreak of floods makes it impossible for people to place appropriate obstacles such as sandbags in place, residents along the river can find it difficult to protect themselves in a timely manner. Retired aerospace engineer Dirk said when he encountered such a situation, why not use his mud hose or water hose hysteresis method. The engineer claimed that using this method, he could resist the surge of floods in a relatively short period of time. He designed the hose is made of plastic or strong waterproof fabric. If the hose is filled with mud, the obstacle of any length can be formed for flood resistance for a long time; if it is filled with water, it can only be short-term