求助一句关于型式试验的英文翻译? the purpose of these tests is to evaluate the valve's operating and sealing performance within the design range determined by the full pressure-temperature envelope of the valve. 这些试验的目的是评估阀门的运行和密封性能处在设计范围内,该范围是由阀门所能承受的最高压力和温度确定的。查看更多