R1 is influenced by several factors, including the material and condition of the target and plunger, the surface area and shape of the plunger tip, and the amount of force applied.
R 1受几个因素的影响，包括目标和顶杆的材料和状况、顶尖的表面积和形状以及所施加的力的大小。
A plunger type quantitative lead pump belongs to the technology field of special pumps and is used for solving the problems with the lead pump, including high rate of wear and short service life.
一种柱塞式定量铅液泵，属特种泵技术领域，用于解决铅液泵磨损速度快、寿命低的问题。
A plunger type quantitative lead pump belongs to the technology field of special pumps and is used for solving the problems with the lead pump, including high rate of wear and short service life.
一种柱塞式定量铅液泵，属特种泵技术领域，用于解决铅液泵磨损速度快、寿命低的问题。
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