| 摘要 |
<p>The present invention relates to static pressure and a metering pump, the pump having a hollow interior and allowing a fluid to flow only in one direction, in which when pressure is applied to the pump, the internal volume decreases and a positive pressure is generated, and when the pressure is removed, the internal volume increases due to the elastic restoring power of the pump and a negative pressure is generated, thus allowing improved manipulability and enhanced accuracy.</p> |
