The Chuang Tzu 》 recorded the way to take water from shaduf; Digging well for irrigation in Han Dynasty period; fixing the pond and building the aqueduct in Tang and Song dynasty , and the usage of dragon bone car, hurdy-gurdy, all recorded in history books, also recorded in 《 The Chinese agriculture history draft 》.

莊子》記載的桔槔取水欧美电影A片一区二区；兩漢時的鑿井灌田精品久久人人摸；唐宋時修塘筑渠欧美大胆人伦姧裸体A片欧，以及龍骨車999国产精品免费、筒車的運用8x8ⅹcom永久免费视频，史不乏書18岁禁止入内网站，并載入《中國農業(yè)史稿》。

There is electricity in our houses and to run pumps, so we do not have to work the shaduf.

房間里也用上了電久久婷婷国产麻豆91天堂，水泵也由電力驅動自拍偷拍第9页，已經不需要水車了。

There is electricity in our houses and to run pumps, so we do not have to work the shaduf.

現(xiàn)在我們一年可以種三茬莊稼而不是以前的一茬亚洲福利日韩看片无码。

There is electricity in our houses and to run pumps, so we do not have to work the shaduf.

現(xiàn)在我們一年收三季AV天堂永久网，以前則是一年一季。

It absorbed the merits of different mechanical structures, applied the mechanic principles of folk waterwheel, barrel car, as well as shaduf, cam, and balance weigh beam, and thus was an automatic observatory, which had the multi function of observation, demonstration and time giving, and it gained or lost no more than one second per day. It was the ancestor of the mechanical clocks, since

它吸取各家機械結構之長国产精品视频免费视频看看，采用民間水車性爱日韩一区、筒車，以及桔槔三级片A片一级毛片视频、凸輪高清无码性爱视频在线观看、天平秤桿等機械原理，是集觀測在线观看黄色视频一站、演示和報時為一體的自動化天文臺一级做a爰片久久毛片A片高潮，精確度已達到誤差每日一秒，更因為采用了早期的擒縱機構日本男人插女人，成為機械鐘的祖先日韩精品合集第一页免费观看。

shaduf：古埃及常用之吊桿,用以提取河水或井

Sha Tau Kok 沙頭角 | shaduf 古埃及常用之吊桿,用以提取河水或井 | Shafie, Ghazalie 沙菲宜

shaduf：汲水吊桿(農田)

Serpent Spear 毒蛇矛(長槍兵) | Shaduf 汲水吊桿(農田) | Skin of rhino 犀牛皮(村民)