Structure for the straight screw, single screw, a warhead double-helix single screw, twin screw three. 结构为直螺旋,有弹头单螺、双头单螺、双头双螺三种。
Force-thermal coupling analysis numerical simulation for a double-helix single screw pump bush 双头单螺杆泵衬套力热耦合模拟研究
Normal, double-helix DNA is spiral, like a loosely coiled spring. 正常的双螺旋DNA是螺旋形的,像一根松松地卷曲的弹簧。
The Design of Double-helix Single Screw Pump Based on PRO/ E 基于PRO/E的双头单螺杆泵设计
DNA's double-helix architecture also endows the molecule with the ability to make precise copies of the information it contains. DNA的双螺旋结构还使得分子具有准确复制其本身所包含的信息的能力。
Probe of "Double-Helix" Concept of Occupational Guidance and Combination between Working and Learning in Higher Vocational Colleges 高职院校职业指导与工学结合的双螺旋理念探索
Double-helix staircases link all three levels. 双螺旋楼梯将上下三层连接了起来。
The above results proved that atrazine could be inserted into the double-helix of DNA and formed a stable DNA adduct. 以上实验结果表明,莠去津平面分子能够嵌插到DNA双螺旋链中,形成较稳定的加合物。
Imaging Diagnosis of Coronary Artery Disease Using Multimodel Reconstruction Display of Double-helix CT Angiography 双层螺旋CT血管造影及多模式重建诊断冠状动脉病变
The Design of Double-helix Continuous Cooling Equipment for Emulsion Explosives 乳化炸药双螺旋连续冷却机设计
The uncoiling of the double-helix structure has close relation with the strategies of teaching and learning. 学与教的双螺旋结构的展开与教师教的策略和学生学的策略密切相关。
Double-Helix CT Scan Of Thoracicoabdominal Diseases And Its Clinical Application 胸腹部双螺旋CT扫描与临床应用
An Empirical Debate between the Conservative and the Radical What Made DNA A Double-Helix Structure DNA双螺旋结构的成因之争
Aiming at offering the reference for designing double-helix single screw pump, the analysis has been done on features of the double-helix and one-helix single screw pumps. 分析了双头单螺杆泵与单头螺杆泵的不同特点及其优越性。
The determination of parameter for double-helix single screw pump 双头单螺杆泵参数的确定
Two GNRs would form a DNA-like double-helix on the external surface and cavity of SWNT. 两根石墨烯纳米带则在碳纳米管外壁及内腔中形成类似双链DNA的双螺旋结构。