The main products are: series compressors, various semi-closed refrigeration system, cooling fan, condenser, water cooling condenser and various spare parts.
主要产品有：半封闭系列压缩机，各式制冷压缩机机组，冷风机，冷凝器，水冷冷凝器及各种零配件。
It practices the semi-closed management and adopts the dorm and school gate double registration system, highlighting the combination of the strict management and educational guidance.
实行半封闭管理，执行宿舍、校门双重出入登记制度；从严管理与教育疏导相结合。
By theoretical analysis, the closed-loop control system is proved to be semi-global uniformly ultimately bounded (UUB), and the output tracking error converges to a neighborhood of zero.
通过理论分析，证明了闭环控制系统半全局一致终结有界，跟踪误差收敛到零的一个邻域内。
The algorithmic relaxes the strict limit on sample frequency, and can guarantee SGUUB(semi-global uniform ultimate boundedness) of the closed-loop system.
该算法对采样频率无严格限制，最终可确保系统闭环半全局一致有界收敛。
By theoretical analysis, the closed-loop control system is proved to be semi-globally uniformly ultimately bounded with tracking error converging to zero.
理论分析证明了闭环系统是半全局一致终结有界，且跟踪误差收敛到零。
The photoelectric encoder is used for measuring the angular position of rotating ballscrew. Semi closed loop compensation control is realized and system accuracy is improved.
应用光电编码器作为滚珠丝杠转角位置检测元件实现了半闭环补偿控制，提高了系统的精度。
The experimental analysis of semi-closed cycle numerical control system driven by direct current servomotor shows that it is more precise than the traditional calculation result.
通过一个以直流伺服电机驱动的半闭环数控系统的实验分析，表明比传统的计算结果有更 高的精度和 可靠性。
The experimental analysis of semi-closed cycle numerical control system driven by direct current servomotor shows that it is more precise than the traditional calculation result.
通过一个以直流伺服电机驱动的半闭环数控系统的实验分析，表明比传统的计算结果有更 高的精度和 可靠性。
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