查询词典 plunger

Pumping speed and the length of stroke have greater effect on the loads applied on polished rod, rod string and pump plunger.

4，冲程次数和冲程长度对悬点、杆柱及泵上的载荷影响较大。

It uses hydraulic cone disk speed adjustment controls the pressing force and its supporting structure of the double plunger pump is adopted in the hydraulic pump CVT cars.

在新型600Nm的无级变速器中，同样也利用传动链构成了大批量生产时无级变速器辅助机构，构成了600Nm无级变速器基本型的重要附件――机-液控制的无级变速器。

Based on the practice of the use of φ95mm subsurface sucker rod pump in Shengtuo Oilfield in recent years, the causes of the failure of the pump are analyzed, and relevant precautions are put forward:(1)selecting oil wells with sufficient fluid supply for pumping;(2)under the condition of the pump efficiency being the same, the submergence depth of the pump being somewhat larger than that of the small pump, and 450～500m being feasible;(3)adopting Grade H ultrahigh-strength rod string and fixing a sinker bar at the bottom of the rod string;(4)selecting long stroke and low pumping speed, and more than 5m stroke and less than 6min-1 pumping speed being recommended;(5)adopting zirconium oxide valve ball and seat ＋ spray welded plunger ＋ nitrided barrel.

根据胜坨油田近几年采用φ95mm有杆抽油泵提液的实践，分析了造成这种抽油泵失效的原因，包括与其配套的脱节器失效、抽油杆断脱、泵漏、电动机不配套和生产管理不善等。为增强泵的提液能力和工作可靠性，提出5 项预防措施：(1)选择有充足供液能力的油井；(2)在保持相同泵效的情况下，泵的沉没度应略大于小泵，推荐按450～500m设计；(3)采用H级超高强度抽油杆柱，并在杆柱底部配置一定重量的加重杆；(4)采用长冲程、低冲次的参数匹配，推荐光杆冲程大于5m，冲次小于6min-1；(5)为提高泵筒、活塞和阀座的防腐耐磨性，推荐采用&氧化锆阀球和阀座+喷焊柱塞+氮化泵筒&的结构形式。

The conclusions show that the new type of seal fabrication is self-tightening. The original clearance between the cylinder and plunger is not the main cause of leakage. The new seal fabrication method is superior to traditional designs, and can seal up to 1 GPa.

结果表明：新型的超高压动密封结构是一种自适应的动态密封结构；初始间隙对密封性能的影响表现出不敏感性，新型超高压密封是可行的密封结构，可实现1 GPa压力的动密封。

I am the Secretary's main operating piston, filler letter, the first oil pump, plunger, bush, into the exhaust valve, piston rings, seal ring, O-ring, oil scraper ring, and a variety of sub-oil machine, by pressure, etc. and run all types of second-hand spare parts.

我司主要经营活塞，填料函，油头，油泵，柱塞，轴瓦，进排气阀，活塞环，密封环， O型圈，刮油环，以及各类分油机，增压器等并兼营各类二手备件。

Effects and from the active sand pumping operation in the pump barrel and plunger between the low friction coefficient high wear resistance and low suction resistance of view poor condition of the pump in the mine with long life.

合理的下井工艺在开发研制新结构抽油泵的同时，试行了两种下井工艺。

Anton Auer Engineering Technology Co., Ltd. ceramic upcoming special pumps, will greatly enhance plunger pump sand, anti-scaling, anti-wear, high temperature performance in several respects.

安东奥尔工程技术有限责任公司即将推出的陶瓷特殊泵，将会大大提高柱塞抽油泵防砂、防垢、抗磨、耐高温几方面的性能。

Grinding, the fine sand section was flat with the plunger axis 45 o, a few push-pull gently to remove the edges and corners can burr.

修磨时，细砂条平面与柱塞轴线呈45o，轻轻推拉几下，以消除棱角毛刺即可。

In the southern China boom town of Shenzhen last month, four young women started up their own reporting team for a 'shanzhai television station' that spoofs local news and uses a camera tripod fashioned from a fan stand and a toilet plunger.

上个月，在中国北方的深圳市，4位年青女孩组成了一个&山寨电视台&的报导组，恶搞本地消息，照相机的三足架由电风扇底座和畅通厕所的皮碗干成。

In the southern China boom town of Shenzhen last month, four young women started up their own reporting team for a 'shanzhai television station' that spoofs local news and uses a camera tripod fashioned from a fan stand and a toilet plunger.

上个月，在中国南方的深圳市，4位年轻女孩组成了一个&山寨电视台&的报导组，恶搞本地新闻，照相机的三脚架由电风扇底座和疏通厕所的皮碗做成。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。