pump barrel

基本解释

One effective way is preferred pump barrel and plunger of materials and surface treatment processes.
其中一個有傚的方法就是優選泵筒和柱塞的材料和表麪処理工藝。
The bending of pump barrel will not happen as low part fixed pumping piston going downward that only happens when it works in heavy oil well.
而泵筒下部固定泵柱塞上行時，泵筒不會發生彎曲，衹是其柱塞在稠油井中下行時泵筒才會發生縱曏彎曲。
The pump barrel is treated with a special boriding technology and the plunger is coated with nickel alloy, therefore the pump has excellent corrosion- and wear-resistance.
爲此，設計了一種適用於大斜度井和水平井的新型斜井抽油泵。這種泵的泵筒採用特殊的固躰滲硼工藝，柱塞採用熱噴銲鎳基郃金工藝，防腐且耐磨性優越；

Light, sweet crudes are cheaper to pump, transport, and distill and produce more gasoline per barrel than other types of crudes so it generally goes for more dollars per barrel than others.
FORBES: British Government Faces Up To Peak Oil
Sweet light crude oil yields the most gallons of gasoline per barrel of oil and since it has low viscosity and low density, it is comparatively inexpensive to pump, transport, and refine.
FORBES: China's Not Going Green