A new type of servo brake which provides a increased brake torque by a roller and a wedge structure, whose advantages are its ideal force on brake shoes and even wear, has been developed.
研制了一种利用滚柱并通过楔形结构实现制动增力的新型增力式车轮制动器，该结构可使制动蹄受力合理、磨损均匀，为中、重型汽车采用液压制动提供了有效的途径。
As cosolvent alcohol was added, the amount of extraction of the praeruptorin A increased, and the amount of SFECO2 extraction was higher than those of decoction and heating reflux.
加入夹带剂乙醇后白花前胡甲素提取量增加，且超临界流体萃取法明显高于水煎煮和加热回流法。
The quantitative perfusion parameters of renal cortical perfusion AUC increased, PI reduced, A increased, TTP extension, and the case group was significant different from the control group(P<0.05);
其定量灌注参数与对照组相比，肾皮质灌注曲线下面积增大、峰值强度减低、曲线上升支斜率增大、达峰时间延长，与对照组有显著性差异（P<0.05）；
The quantitative perfusion parameters of renal cortical perfusion AUC increased, PI reduced, A increased, TTP extension, and the case group was significant different from the control group(P<0.05);
其定量灌注参数与对照组相比，肾皮质灌注曲线下面积增大、峰值强度减低、曲线上升支斜率增大、达峰时间延长，与对照组有显著性差异（P<0.05）；
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