The automatic choke includes a thermostatic spring and a vacuumpiston.
自动阻风门包括一个恒温控制弹簧和一个真空活塞。
2
One end of a probe telescopic rod is provided with an ultrasonic sensor, a flow velocity determinator, a pressure sensor and a vacuumpiston water sample collector.
探头伸缩杆一端安有超声波传感器、流速测定仪、压力传感器和真空活塞水样采集器。
3
The piston moves up and down in the piston chamber primarily in response to changes in intake manifold vacuum.