The error analysis in the measurment of a coning angle with a sine bar

1、

This lot quality samples were prepared well mixed, and reduced by coning and quartering.

样品被准备得好混合的这一个运气质量，而且藉由精读而且四等分减少。

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2、

The three phase model of oil gas and water coning

油气水三相锥进模型

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3、

Aim at the problem of gas coning and oil coming into gas cap, water flooding barrier on GOC is used to solve to them.

针对油气界面变化带来的气窜和油侵气顶的问题，常用在油气界面处注水障的方法来解决。

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4、

Meanwhile, horizontal well can effectively control bottom water coning and gas coning, postpone water breakthrough time.

水平井可有效地控制底水锥进和气锥进，延缓见水时间；水平井单井控制面积是直井的2～3倍，而钻井费用只是直井的15～2倍。

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5、

Tersely illustrates the forming mechanism of gas cutting and gas coning with their reasonable gas flooding technology, measures of preventing impurities in water and CO 2 causing the damage of reservoir;

简要介绍了气侵、气锥形成机理和合理的注气工艺及预防注入水和CO2气体中杂质带来的油层伤害措施；

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6、

Effects of Water and Heat Stress on the Needle Sugar Content of Four Coniferous Tree Seedlings

水分和热胁迫对苗木针叶可溶性糖含量的影响

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7、

Preliminary study on Cuttage of four coniferous tree species introduced from abroad

4个国外引进树种扦插试验初报

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8、

A study on Application of Photo-micro Fertilizer In Coniferous Tree Seeding

光肥在针叶树育苗中的应用研究

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9、

Study on Fire Resistance of Bark of 3 Coniferous Tree Species

3种针叶树种树皮抗火性研究

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10、

Family of confocal centred conics According to the restriction of the generatrix line, Bertrand surface can be constructed with the Bertrand curve with broad sense group.

共焦有心二次曲线族按照母线的约束，形成广义白川德曲线族，进而构造出白川德曲面。

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11、

Conical shaft extension for rotating electrical machines conical drum reversing concrete mixer

GB/T757-1993旋转电机圆锥形轴伸锥形反转出料混凝土搅拌机

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12、

Conical drum reversing concrete mixer

锥形反转出料混凝土搅拌机

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13、

The check valve of the single piston pump was replaced by ball valve, and conical valve with guidance was used for safety valve;

单柱塞油泵的单向阀改成球阀，安全阀改用带导向的锥阀；

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14、

Axial Force of Conical Valve

圆锥阀的轴向力

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15、

On Waveguide Band-Pass Filter Axial Force of Conical Valve

波导带通滤波器圆锥阀的轴向力

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16、

Through examples in practice, the paper presents the fault diagnosis and treatment of conical valve system.

以实例说明了锥阀系统故障的诊断与处理方法。

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17、

Fault diagnosis and treatment of integrated conical valve hydraulic system

锥阀集成液压系统的故障诊断与处理

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18、

A New Model and Simulation of the Movement of Self-acting Conical Valve of Reciprocating Pumps

往复泵自动锥形阀运动规律的新模型与仿真

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19、

It also approach theoretically to change the conical valve gag into globe valve gag to raise the stability of the seal plate.

并在理论上探讨将锥形阀瓣改为球形阀瓣，提高密封面的稳定性。

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20、

Experimental Investigation on Conical Horn Excited by an Azimuthally Symmetric Mode with Plate Lens

轴对称模激励的加平行板透镜圆锥喇叭实验研究

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