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- helical strake 螺旋型箍条
- The helical spring can no longer be used. 盘簧不能再用了。
- The polynucleotide chain is helical. 多核苷酸键是螺旋形的。
- The first range or strake of planks laid next to a ship's keel. 龙骨翼板靠近船的龙骨的第一排厚板或船侧板。
- The helical gear has become worked down over the years. 斜齿轮因为年久而磨损了。
- The milling machine is often employed to cutspur and helical gears. 铣床常用来铣制正齿轮和斜齿轮。
- Virions may be polyhedral or helical and vary greatly in size. 其形状有多面体形和螺旋形,其体积大小多变。
- Helical circular mixture ,fast and uniform stirring. 螺旋循环搅拌使得原料混合更加均匀、快速。
- Helical rotor is one of the key parts of high consistency repulper. 螺旋转子是高浓碎浆机的关键部件。
- The SARS viral nucleocapsid is tubular with a helical symmetry. 沙士病毒的核壳呈管形,属螺旋对称型。
- The raw materials are strake struck over and over until they become loose. 该工艺从衣服、稻草、木头或者树皮制造成纸张。
- Conclusions Helical CT scan is of great value to the diagno... 结论螺旋CT平扫在诊断急诊输尿管结石具有重要的临床价值。
- No malignant lesion was misdiagnosed.Conclusion: Helical CT pne... 结论:螺旋CT结肠充气造影对结肠癌的诊断及分期具有重要价值。
- Helical scircular misture , fast and uniform stirring. 螺旋循环搅拌使得原料混合更加均匀,快速。
- Double helical structure of DNA and types of DNA helices. 去氧核糖核酸的双螺旋结构与其类别。
- "Multiphasic helical CT is the modality of choice in this cohort. 作者表示,多面螺旋电脑扫描是物理疗法的另一种选择。
- The prototype to be flown on May 10 has been modified with work done on its air-intakes, strake and vertical fins, besides modifications in the fuselage. 这架重新设计了机身进气道,边条和腹鳍的新型原型机将于5月10日正式试飞。
- Purpose:To improve understanding the helical CT features of celiac abscesses. 目的:提高对腹腔脓肿的螺旋CT表现的认识。
- The location of separation line and relative the strength and position of avortex shed from a strake are present here. 机翼表面上震波及高攻角涡漩流所产生之分离流形式及强度与位置结果亦可正确地计算及分析。
- Two same scan protocols were prepared: unenhanced helical and enhanced CTA. 即制定两组扫描参数相同的计划螺旋采集平扫与增强扫描。