At present, digital variable displacement axial piston pump has some problems.
目前,数字变量轴向柱塞泵还存在着很多问题。
参考来源 - 单片机控制数字变量柱塞泵的研究Variable displacement compressors (VDC) are more and more widely used in automotive air conditioning systems because of its benefit such as continuously steady regulation, better thermal comfort inside cars and less oil consumption.
变排量压缩机由于具有调节过程连续平稳、车内环境热舒适性好和耗油少等优点,在汽车空调制冷系统中得到了越来越多的应用。
参考来源 - 斜板式变排量压缩机及其汽车空调制冷系统特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
A variable displacement pump could save energy during the long holding time.
变量泵可在长的保压时间内节省能源。
At present, digital variable displacement axial piston pump has some problems.
目前，数字变量轴向柱塞泵还存在着很多问题。
The variable displacement pump operates in only one of the first and second pump displacement settings.
变量泵仅运行在第一和第二泵排量位置中的一个位置上。
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