Warning: file_put_contents(): Only 0 of 6374 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/201990.com/index.php on line 55 spring-loaded plunger是什么意思，spring-loaded plunger的翻译，spring-loaded plunger音标、读音、用法和例句_耀久九英英词典
V-packings: Self-adjusting, spring-loaded, double V-packings maintain constant high pressure seal compression and extend seal and plunger life. 密封：自動調節，彈簧底座，雙層V-密封維持高壓密封和延長密封與柱塞壽命。