Objective To evaluate the clinical application of permanent vena cava filter in patients with deep venous thrombosis.
目的探讨下肢深静脉血栓形成患者植入永久性腔静脉滤器的临床应用。
Objective To evaluate the clinical application of permanent vena cava filter (P-VCF) in patients with deep venous thrombosis (DVT).
目的探讨下肢深静脉血栓形成患者植入永久性腔静脉滤器的临床应用。
A nonlinear speed controller for permanent magnet synchronous motor based on adaptive backstepping control was designed, which USES second-order filter to smooth the speed reference.
设计了一种基于自适应反步控制的永磁同步电动机非线性速度控制器，采用二阶滤波环节平滑速度指令。
Based on vector control system of Bearingless Permanent Magnet Synchronous Motor (BPMSM), a speed-sensorless control strategy using Extended Kalman Filter (EKF) was presented.
基于无轴承永磁同步电机的矢量控制系统，提出了采用扩展卡尔曼滤波器实现无速度传感器运行的控制策略。
On account of the problems of magnetic circuit design of magnet assembly at home and abroad, a permanent magnetic filter with a unique magnetic circuit was developed.
磁滤器是一种用于弱磁性粉体矿物分选的小型磁选机，其磁系是磁滤器的关键部件，针对国内外磁系磁路设计中的问题，研制了一种磁路独特的永磁磁滤器。
On account of the problems of magnetic circuit design of magnet assembly at home and abroad, a permanent magnetic filter with a unique magnetic circuit was developed.
磁滤器是一种用于弱磁性粉体矿物分选的小型磁选机，其磁系是磁滤器的关键部件，针对国内外磁系磁路设计中的问题，研制了一种磁路独特的永磁磁滤器。
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