(4) The plunger component is often large, and it is easy to droop due to self-weight when placed horizontally, resulting in sealing and guiding unilateral wear, so its straight use is more favorable.
 (4) Miisaanka tuubadu inta badan waa weyn yahay, markii meel siman loo dhigo, way fududahay inaad hoos u dhacdo miisaankiisa awgiis, taasoo keenta xirnaansho hal dhinac ah oo shaabado ah iyo hage, markaa isticmaalkeeda toosan ayaa ka wanaagsan.