大致近似于纸风车上的双重螺旋线。
A rough approximation would be the dual spirals in pinwheel.
这就是科学家们使用一种DNA新技术创造出来的神奇景象，这种技术使用DNA的双重螺旋来构造超微小的材料。
That's what scientists have made using a new technique for building super-tiny shapes using the familiar double helix of DNA.
你们运行遗留的唯一信息并且是你们保留运行双重的螺旋。
The only information that remained for you to play with and to keep you functioning was the double helix.
目的：探讨气钡双重造影及螺旋CT对结肠癌诊断的临床应用价值。
Objective: to discuss the predictive value of double air contrast radiography and spiral computed tomography in the diagnosis of colon carcinoma.
螺旋藻是一种最古老的水生原始生物，它富含多种营养素和生物活性物质，具有营养保健和治疗双重功能。
Spirulina is a kind of oldest primitive hydrophyte. It contains various nutrients and biological active substances. Therefore, it has both healthy and medicinal effects on human body.
本发明是一种旋轮翼，它具有缘肋和桨叶，其特征是：把旋翼或螺旋桨的桨叶和飞轮的轮缘及加强环肋结构有机地结合成为一个整体，使之具有飞轮与旋翼或螺旋桨的双重功能；
The invention is characterized by the combination of the blades of a propeller and the wheel rim or ring rib of a flywheel, and has dual functions of a flywheel and a rotor wing or a propeller;
本发明是一种旋轮翼，它具有缘肋和桨叶，其特征是：把旋翼或螺旋桨的桨叶和飞轮的轮缘及加强环肋结构有机地结合成为一个整体，使之具有飞轮与旋翼或螺旋桨的双重功能；
The invention is characterized by the combination of the blades of a propeller and the wheel rim or ring rib of a flywheel, and has dual functions of a flywheel and a rotor wing or a propeller;
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