推荐 探索 直播 放映厅 短剧 猪脚饭a 关注 8000 粉丝 4300 获赞 2000 抖音号:5903591z74240岁 最新作品发布时间:2021-12-16 13:40 扣1领取课程 加派课老师微 ️13272093795 作品20 喜欢 视频 日期筛选 88 嘴硬会失去很多 52 所有浪漫的事我都想和你做...
Reciprocating compressor, especially for machines aperfeicoado frigorificas size reduced 来自 掌桥科研 喜欢 0 阅读量: 3 申请(专利)号: BR19730483273 申请日期: 1973-06-29 公开/公告号: BR7304832D0 公开/公告日期: 1974-08-15 申请(专利权)人: DANFORSS AS 发明人:...
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The present invention concerns an arrangement for generating a pulsating underpressure in a line 7 intended to be connected to a breathing vest A, which arrangement comprises an underpressure line 6 connected to an underpressure source 1. According to the invention, the arrangement comprises a tube...
A system for the closed-loop control of a positioning unit in a motor vehicle with the system's loop controller supplying a signal to the positioning unit dependent upon a comparison between a predetermined-value signal and an actual-position signal. The predetermined-value signal depends upon the...