device for controlling the air flow rate in which any unstable control attributable to the feedback control is not generated in a subject to be controlled when the air flow rate control is fed back with a root of a drive shaft of an actuator as the detecting position in a gas turbine, ...
It is an object to provide a cap that can prevent inadvertent rotation for unscrewing. To achieve this object, the cap is provided for a container body having an opening portion having a threaded upper portion, a central portion provided with an annular bead portion, and a lower portion provi...