|
关注：1
2013-05-23 12:21
求翻译：the position is kept thanks to the pressure assured to the smallest piston and to the spring force。 when the valve is actuated ，the same pressure is fed to the biggest piston . Its bigger surface create a force which allows to the spool to move and therefore to connect ports 4-1 and 2-3. Spring return assures the norma是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
the position is kept thanks to the pressure assured to the smallest piston and to the spring force。 when the valve is actuated ，the same pressure is fed to the biggest piston . Its bigger surface create a force which allows to the spool to move and therefore to connect ports 4-1 and 2-3. Spring return assures the norma
问题补充：  
|
