A Color Development System for Bicarbonate Ion

1、

Research on Oilwell Cement Corrosion by Chloride Ion and Bicarbonate Ion Versus

氯离子与碳酸氢根离子对油井水泥的腐蚀研究

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2、

Contamination of Drilling Fluid by Carbonate Ion and Bicarbonate Ion and Its Treatment

碳酸根和碳酸氢根离子对钻井液的污染及处理

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3、

Loose-fitting trousers, usually of strong fabric, with a bib front and shoulder straps, often worn over regular clothing as protection from dirt.

宽松的裤子，工装裤常由坚固织物制成的宽松的裤子，前有围裙的上部分，肩有背带；

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4、

双轴晶体一水甲酸锂倍频的若干问题

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5、

The Identification of Optic Sign of Biaxial Crystal at Optic Angle Near 90 °

光轴角近90°时二轴晶光性正负的判别

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6、

Theoretical and Experimental Study on the Interference of Convergent Polarized Light for a Biaxial Crystal

双轴晶体会聚偏光干涉的理论与实验研究

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7、

Realization of Biaxial Crystal Dynamic Outer Conic Refraction by Using Iris

利用可变光阑实现双轴晶体动态外锥折射

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8、

New methods for proving the existence of circle profile in biaxial crystal

证明双轴晶体圆切面存在的新方法

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9、

Plane wave solutions of biaxial crystal in principal axis coordinate system

双轴晶体中平面波解在主轴坐标系下的表达

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10、

New Calculation Method of the Optic Axial Angle of the Biaxial Crystal

双轴晶体光轴角计算的新方法

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11、

The general situation of production technique and tensile mechanism of biaxial orientation PVC-U tubing are introduced, and their characteristics are explained, which have certain instruction to realize their commercial application.

介绍了PVC-U双轴取向管材的生产技术概况和拉伸机理，对它们的特点进行了说明，对实现工业应用具有一定的指导作用。

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12、

Progress of recent studies on the deformation mechanism for spherulites of isotactic polypropylene ( I PP) in the uniaxial and biaxial orientation process was introduced.

介绍了近来国内外对单向、双向拉伸过程中全同立构聚丙烯（iPP）晶体内部球晶形变机理的研究进展。

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13、

Biaxial orientation polyethylene terephthalate ( BOPET) film is widely used in printing, packaging and so on for its excellent comprehensive properties.

双向拉伸聚酯（BOPET）薄膜是一种综合性能优异的薄膜材料，广泛应用于印刷、包装等领域。

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14、

Development of Pearl Masterbatch for Biaxial Orientation Polypropylene Films

白色双向拉伸聚丙烯薄膜专用珠光母料的研制

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15、

Effect factor on high-speed biaxial orientation for BOPP speciality resin

共聚BOPP专用料高速拉伸影响因素

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16、

In this review methods of determining polymer orientation using X-ray diffraction are described. It includes uniaxial and biaxial orientation, as well as their calculating methods.

介绍了用X射线衍射法测定结晶聚合物材料取向度定义，单轴和双轴取向及其计算方法。

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17、

Current technical situation of producing biaxial orientation PVC-U tubing

PVC-U双轴取向管材生产技术现状

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18、

The modelling results suggest that biaxial extension dominates the isothermal squeeze flow process, with apparently negligible shear flow effects.

研究结果表明：GMT挤压流动过程中拉伸流动为主导流动，剪切应力的影响较小，可以应用拉伸流动模型来预测压力的大小。

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19、

Transverse Cracking of Cross-ply Laminates Subjected to Biaxial Extension Loading Cherishing Time

正交层板受双向拉伸时的横向开裂

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20、

The increase mechanism of dislocation and micro-voids in deep drawing sheet steel during forming paths of uniaxial tension, plane strain and equal biaxial stretch was studied by using positron annihilation lifetime method.

本文应用正电子寿命法研究了深冲钢板在单向拉伸、平面应变和等双向拉伸变形过程中的位错和微空洞增长机制。

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