双层

The product wrapped by two layers of PE plastic bags is packed in moistureproof rigid paper bucket, with net weight of 25kg per bucket

本产品包装在双层聚乙烯塑料袋内，并置于内侧涂塑防潮的硬质纸板桶内，每桶净重25KG

The product wrapped by two layers of PE plastic bags is packed in moistureproof rigid paper bucket, with net weight of 25kg per bucket

砂纹蜡包装在双层聚乙烯塑料袋内，并置于内侧涂塑防潮的硬质纸板桶内，每桶净重25KG

The results show that appropriate earlier sowing, drill sowing and using mycorhiza help to increase the ground diameter, the height, and the quality of the seedlings, but different shading ways have no obvious effect on the growth and quality of seedlings.

结果表明：适时早播有利于苗木地径、苗高、苗木质量的提高；单层和双层遮荫对幼苗生长影响不大，但适当遮荫有利于幼苗生长；条播、使用菌根粉的苗木明显优于撒播、不使用菌根粉的苗木。

The establishment and thermal stability of exchange bias between the ferromagnetic NiFe layer and antiferromagnetic FeMn layer have been studied.

研究了在铁磁反铁磁双层膜之间，交换偏置的形成过程和热稳定性，特别是NiFe FeMn的交换偏置作用与FeMn层晶粒尺寸的关系。

In this dissertation, In this dissertation, the magnetism property on the exchange bias of NiFe/PtMn films with the insertion Cr were systematically investigated.

本文中插入层Cr对NiFe／PtMn双层膜交换偏置体系的磁性能及与微结构之间的关系。

The exchange bias of NiFe/PtMn bilayers change differently with the variety of Cr concentration and the thickness of PtMn.

而NiFe／PtMn双层膜的交换偏置场也将随着PtMn层厚度和颗粒尺寸的不同呈现不同的变化趋势。

To the liquid-crystal display from its structure, the principle as well as the classification has carried on the introduction, twists to the row (TN-Twisted Nematic); Ultra distortion to row (STN-Super TN); Double-decked ultra distortion to row (DSTN-Dual Scan Tortuosity Nomograph); The thin film crystal (TFT-Thin Film Transistor), introduced the thin film crystal liquid-crystal display with emphasis.

对液晶显示器从其结构，原理以及分类进行了介绍，扭曲向列型(TN-Twisted Nematic)；超扭曲向列型(STN-Super TN)；双层超扭曲向列型(DSTN-Dual Scan Tortuosity Nomograph)；薄膜晶体管型(TFT-Thin Film Transistor)，重点介绍了薄膜晶体管型液晶显示器。

Nevertheless, induced bilevel programming models for the former category usually belong to a subject of nondifferentiable optimization problems, whereas that for the latter category becomes the continuously differentiable optimization problems.

此文首先从模型和算法的角度总结了有关这类问题已有的研究成果，接着介绍有关这方面的最新的研究进展，即如何把用户基于平衡原则下的交通网络优化问题的双层规划模型统一地转换为一个连续可微的单层最优化问题，并设计统一的算法。

The magnetite with a mean diameter of 8nm was prepared by chemical coprecipitation methods. By the addition of nonionized oleic acid to the suspension of magnetite in solution during precipitation, the magnetite nanoparticles were coated with a double surfactant layer. A gel-like precipitated precursor is then formed because of the hydrophobic interaction among those coated units. By transferring of this precursor to an organic solvent, the surfactant double layer on Fe〓O〓 nanoparticles reduces to one; however, it still remains as a double layer by transferring to an alkaline aqueous solution. Both these cases give in stable colloids of superparamagnetic Fe〓O〓 nanoparticles.

从解决无机磁性Fe〓O〓颗粒与有机烯类单体的相容性入手，采用化学共沉淀法，制备了平均直径为8nm的超顺磁性Fe〓O〓颗粒，在制备过程中以非离子形式引入油酸，在Fe〓O〓颗粒表面形成一个具有双层结构的疏水外壳，并通过疏水相互作用凝聚成磁性Fe〓O〓凝胶，能够以单分子层结构形式溶解在非极性溶剂中，也能够以双分子层结构形式溶解在碱性水溶液中，形成稳定的超顺磁性Fe〓O〓溶胶。

Ock produces a two-layer system, in which competitive A-types seem in some way better than their

现在这种让孩子们和其同学或时间竞争的热情导致了一个双层结构，在这个

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷