ZT J系列螺旋桨是推进器用于制浆造纸工业作为卧式浆池的循环搅拌装置。以使纤维保持悬浮状态，保持纸浆的组成部分在浆料中均匀分布。
ZTJ series of Screw Propeller are used as cycle stirring devices for lying pulp and paper making industry to keep fiber in suspension and also well-distributed.
莱特兄弟在1903年12月17日用一架轻而薄的，单螺旋桨的飞机实现了一系列短距离飞行，从而证明了这并非不可能。
The Wright brothers proved otherwise on December 17th 1903, making a series of short flights in a flimsy, single-propeller plane.
近几年来，上海交通大学船模试验池对简易导管螺旋桨进行了多种方案的系列试验研究。
In recent years, several types of the ducted propellers with simplified duct profile have been systematically tested by the Shanghai Jiao Tong University ship model basin.
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