求翻译：打开稳压阀盖，精心调节调压螺塞进、出距离。当压力表指示达到你所要求的压力后，检查稳压阀是否进入工作状态。如所调压力为0.4MPa时，当进口压力升高后，稳压阀是否在0.4MPa打开降压，并保持进口压力不断续升高。当进口压力下降到0.4MPa以下，稳压塞是否关闭并且无泄漏。是什么意思？

Open the regulator valve cover, and carefully adjust the regulator screw into the distance. When the pressure gauge to achieve the required pressure, check the regulator valve into the working state. As stressors for 0.4mpa, when the inlet pressure is increased, the regulator valve is opened in 0.4m

Turn on voltage regulator valve cover, carefully adjust the plug-in, a distance. When you reach the pressure gauge indicates the pressure required to check for voltage regulator valve is to work. If the pressure is 0.4 when MPa inlet pressure rises, the voltage regulator valve after the 0.4 MPa open

Turns on the constant voltage valve cover, adjusts the accent to press the thread plug carefully to enter, the distance.After the pressure gauge instructed achieved you request pressure, inspection constant voltage valve whether thrust build-up.When adjusts the pressure is 0.4MPa, after inlet pressu

Open the regulator valve cover, carefully adjust the regulator screw into and out of the distance. When the pressure gauge indicates that pressure to meet your requirements, check whether the regulator valve into a working state. As adjustable pressure is 0.4MPa, when the inlet pressure increased af