主机机座内装有二级螺旋齿轮减速器与电动机，涡轮式选粉机装在磨腔壳体上部。
There are two class screwing gear reducer and electromotor in the base of main machine. The powder classifier is equipped on the top of grinding chamber.
该蛋白的二级结构包含螺旋构象10%、折叠构象17%、转角构象21%及无规则卷曲53%。
The second structure of LGBP has 10 % helix, 17 % sheet, 21 % turn and 53 % coil.
利用一种伺服螺旋机构构成的二级气动数字伺服阀(简称“2d气动数字阀”)，简化了传统二级气动伺服阀的结构而性能却有较大提高。
By adopting a 2d pneumatic digital servo valve composed of servo spiral mechanism, conventional two-stage pneumatic servo valve structure is simplified while its performance is greatly enhanced.
对氨基酸序列进行二级结构分析，结果显示其含有21个卷曲，17个螺旋，6个折叠股。
There were 21 coils, 17 helices and 6 strands in the secondary structure of the protein.
对氨基酸序列进行二级结构分析，结果显示其含有21个卷曲，17个螺旋，6个折叠股。
There were 21 coils, 17 helices and 6 strands in the secondary structure of the protein.
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