The utility model relates to a safety protecting device for the automatic braking of automobiles, comprising a safety plate, a protective net, an automaticairvalve, and a propeller.
一种汽车自动刹车安全保护装置,有安全板、保护网、自动气阀、推进器组成。
2
The reason why the automatic exhaust valve failed to be used for air exhaust from siphon tube was investigated.
对自动排气阀不能用于虹吸管排气的理由进行了分析。
3
The feasibility was discussed for the use of Venturi tube and automatic exhaust valve for expelling air from siphon tube.