筒

A universal rewinder with advanced technology, high production, high performance and low noise.

技术先进的高速、高产量、高性能、低噪音的通用型松筒络筒机。

In order to do research on pipe flow and pump characteristics of polymer flooding and water flooding rod-pumped well in especially high water-cut stage, rheometric test aimed at production stream from polymer flooding and water flooding rod-pumped well in especially high water-cut stage has been made, and the characteristic of production stream in especially high water-cut stage is confirmed as Newtonian fluid. Experiments using different mediums about pipe flow and pump characteristics is made. Frictional resistance and coefficient of friction resistance of annulus fluid between sucker rod and the pipe flow is calculated under different working conditions. Frictional resistance between plunger and pump barrel under different parameters is calculated based on related theory of pump characteristic and the strained analytical model of oil-well pump. Besides, using the theory of slit flow and hydraulic -clamping pressure, the frictional resistance is calculated, and the error between the result and measured value is no more than 13%.

为研究特高含水期水驱及聚驱抽油机井管流特性与泵特性，本文针对特高含水期水驱及聚驱井采出液进行了流变性试验，确定了特高含水期油井采出液的性质属牛顿流体；利用不同介质，进行管流特性与泵特性试验，得到了不同工况下杆、管环空流的摩擦阻力和摩阻系数；根据泵特性相关理论和抽油泵受力分析模型，计算了不同参数下柱塞与泵筒间的摩擦阻力，并利用缝隙流与液压卡紧力理论对柱塞与泵筒间的摩擦阻力进行了计算，计算结果与实测值误差在13%以内。

Corolla white, salverform, dilated at throat or middle of tube; lobes shorter than tube, overlapping to right.

筒部的花冠白色，高脚碟状，膨大的在喉部或中间；裂片短于筒部，对正确地重叠。

The cylinder of 280mm in circumference applicable for decorative seaming on the collar and the sleeve of children's wear and for cylindrical seaming on knitted wear as well.

机筒的圆周长只有280毫米，特别适用于儿童服饰的领口，袖口等的装饰缝，且对针织品的筒状缝纫机有适当的辅助功能。

Chlorpyrifos mehtyl with different dosages of 3,5,10 mg/kg compared with malathion 15 mg/kg in grain silo,each contented 40 thousand kilograms of rice was studied.To be sprayed by machine when loading to silo and to be observed two years through all experiment,the effective control to sitophilus zeamais of chlorpyrifos mehtyl 5 mg/kg can be protected more than six months,and 10 mg/kg over one year.

报道了甲基毒死碑(化学名称为二甲基O-3，5，6-三氯-2-吡啶基硫逐磷酸酯)3、5、10 mg/kg不同剂量，以防虫磷15 mg/kg作比较，在立筒库星仓内，每筒40000 kg稻谷，机械喷雾法处理，储藏二年，经生物测定对玉米象药效，甲基毒死蜱5 mg/kg可达半年以上，10 mg/kg可达一年以上防护期。

Stamens 4, adnate to corolla tube near base, included; anthers dorsifixed, coherent, thecae divergent, confluent at apex, dehiscing longitudinally; connective not projecting; staminode 1, adnate to adaxial side of corolla tube.

雄蕊4，贴生于花冠筒近基部，包括；花药背着，连着，分叉，汇合在先端，纵向开裂；药隔不凸出；退化雄蕊1，贴生于花冠筒的正面的边。

Stamens 4, adnate to corolla tube near base, included; anthers basifixed, coherent in pairs, thecae parallel, not confluent, dehiscing longitudinally; connective not projecting; staminode 1, adnate to adaxial side of corolla tube.

雄蕊4，贴生于花冠筒近基部，包括；花药基着，成对连着，平行，不汇合的囊，纵向开裂；药隔不凸出；退化雄蕊1，贴生于花冠筒的正面的边。

Corolla rotate or subcampanulate; tube short; lobes narrow, longer than tube, twisted to right.

花冠辐状的或近钟状；筒部短；狭窄的裂片，长于筒部，对正确地扭曲。

Corolla yellow, salverform; tube subquadrangular or basally inflated and urn-shaped, base slightly narrowed; lobes longer than tube.

花冠黄(或白色，红色，粉红色，或橙)，；基部的筒部近四棱或膨大和坛状，基部稍狭窄；裂片长于筒部。

Stamens 2, adnate to abaxial side of corolla tube below middle, included; anthers basifixed, coherent apically or adaxially, thecae parallel, not confluent at apex, dehiscing longitudinally; connective not projecting; staminodes 2 or 3, adnate to adaxial side of corolla tube.

雄蕊2，贴生于花冠筒中间以下的背面的边，包括；花药基着，连着或，平行，不汇合的囊在先端，纵向开裂；药隔不凸出；退化雄蕊2或3，贴生于花冠筒的正面的边。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。