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水桶提水机：波斯轮和Noria

325 bytes added, 19:19, 13 April 2016
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{{Language-box|english_link= Bucket elevators, Persian wheels and Norias | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | korean_link= Coming soon | chinese_link=水桶提水机：波斯轮和Noria | indonesian_link= Coming soon | japanese_link= Coming soon }}
 
[[Image:bucket elev icon.png|right|80px]]
 
[[Image:persianWheel.jpg|thumb|right|200px|Persian wheel. Drawing: FAO]]
[[Image:noria.jpg|thumb|right|200px|Noria. Drawing: FAO]]
[[Image:noria.jpg|thumb|right|200px|Noria. Drawing: FAO]]
__NOTOC__ <small-title />
对于简易的绳桶提水方法而言，有这样一种改良的方案，就是将若干个小桶依次置于一条首尾相连的传送带上，从而能用小桶连续提水。最早的时候，这被称为“波斯轮”，它虽起源洪荒却仍广泛使用。起初，它的形式包括用绳子把陶壶系在一条链子上，这条链子再挂在驱动轮上。另一种装置叫“Noria”，也就是一个将壶、 桶或空心的竹子等容器置于其边缘的水轮。水力驱动的Noria采用的原理和如今的装置类似，只是这些桶状容器直接置于驱动轮的外沿一圈，而不是悬于其上的首尾相连的传送带。
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