1)  reciprocating pump
往复式泵
1.
This text is mainly about reciprocating pump,introduces the working principle and the main performance parameters of it.
对往复式泵的流量、压力等主要性能参数及其工作原理进行了分析。
2)  reciprocating pump
往复（式）泵
3)  reciprocating
往复
1.
Superadiabatic combustion with reciprocating flow in a porous medium has been investigated through numerical calculations.
研究多孔介质内往复流动下的超绝热燃烧。
4)  to-and-fro
往复
1.
Special designed drive outfit and PLC are adopted to control object moving to-and-fro and rotating at prearranged positions.
采用特殊设计的传动机构结合PLC控制物体作直线往复运动和在预定位置作自转运动。
5)  reciprocating extrusion
往复挤压
1.
Structure refinement and mechanical properties of Mg-4Al-2Si Mg alloy by reciprocating extrusion;
往复挤压Mg-4Al-2Si镁合金的组织细化与力学性能
2.
Microstructure and ageing behavior of Mg_2Si/Mg-Al composites produced by reciprocating extrusion;
往复挤压制备Mg_2Si/Mg-Al复合材料组织及时效行为研究
3.
Microstructure of bulk Mg_(92.5)Zn_(6.4)Y_(1.1) magnesium alloy prepared by reciprocating extrusion from rapidly solidified ribbons;
往复挤压快速凝固Mg_(92.5)Zn_(6.4)Y_(1.1)镁合金及其微观结构
6)  reciprocating extrusion (RE)
往复挤压
1.
6%Zr were prepared by a combination of processes of rapid solidification (RS), reciprocating extrusion (RE) and extrusion (EX).
通过快速凝固(RS)、往复挤压(RE)、单次挤压(EX)工艺制备RE-EX-RS-ZK60和RE-EX-RS-66合金。
参考词条
补充资料：往复式真空泵
分子式：
CAS号：

性质：利用活塞往复运动抽吸气体以获得真空的泵。其构造和原理基本与往复式压缩机相同。但真空泵的压缩比很高，所抽吸气体的压强很小，故真空泵的余隙容积必须更小，排出和吸入阀必须更加轻巧灵活。为减小余隙的不利影响，气缸设有连通活塞左右两端的平衡气道。进气阀和排气阀多采用滑阀结构，而不用弹簧阀。一般采用干式操作。如气体中含有大量蒸汽，必须把蒸汽冷凝除掉之后再进入泵内，以获得高真空度。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。