查询词典 advantages and disadvantages

As to the procedure of obtaining evidence, the writer points out some procedures which are illegal and will result in the invalid of E-mail; as to the authenticity, several methods to identify were concluded and their advantages and disadvantages are also listed. In addition, the writer points out that the laws in force on the authenticity of E-mail were very macroscopic and vague. And there are not concrete laws in effect to identify the authenticity of E-mail without electronic signature and encryption. So the writer explains his views that each links of E-mail's lifecycle should be deeply analyzed and checked to exclude the possibilities of unauthenticity of E-mail.

就取证程序方面，该部分则指出了哪些取证程序是违反法律并可能会导致电子邮件无效；就电子邮件真实性的问题，本文主要从现有立法归纳出几种认定电子邮件真实性的具体方式，并阐述了这些方式的利弊，同时笔者还在该部分指出，现行法律对于电子邮件真实性问题的认识，仍仅停留在宏观层面，显得过于宽泛，尤其是针对未经签署电子签名和加密的电子邮件真实性的认定问题，现行法律没有进行具体规范。

In this article,we first introduce some common knowledge of controlled release;then we analyze the feasibility of utilizing various controlled release system on disinfectant and quality guarantee of potable water, and point out the advantages and disadvantages of util.

首先介绍了控制释放的一般知识，分析了各种控释体系应用于饮用水的消毒保质上的可行性，指出了这一技术在饮用水的消毒保质上应用的优点和存在的问题，并对其应用前景进行了展望。

This paper compares the advantages and disadvantages of each method,and considers that Areal Interpolation Algorithm based on surface models is an appropriate method to the gridding of vector polygon and should be used more extensively.

同时介绍了各类算法的实现思想，并比较了其优劣及应用范围，认为基于表面模型的面积内插法是一种比较理想且极具发展前景的矢量多边形网格化方法。

The general method and microwave radiation Veratrum aldehyde synthesis comparison Abstract: Objective To investigate the synthesis methods Veratrum aldehyde and to study the synthesis of microwave radiation of the advantages and disadvantages of this new approach, to provide guidance for the production of meaning.

化学合成毕业设计翻译求解急！！用普通方法和微波辐射法合成藜芦醛的比较摘要：目的考察合成藜芦醛的方法，并研究微波辐射合成这种新方法的优缺点，为生产提供指导意义。

Well log and seismic data have their advantages and disadvantages in the study and interpretation of structural patterns.

将地震、测井结合起来研究构造形态是今后的发展趋势和方向。由于地下地质构造的复杂性，我们采用了人机交互的方式，发挥了解释专家的主观能动性。

The article describes the advantages and disadvantages of worm gear drive s and the domestic and abroad research.

介绍蜗轮传动优缺点和国内外蜗轮研究现状。

The technological process in preparation of the delafossite structure p-TCO thin films by sol-gel method is discussed systematically. The relative advantages and disadvantages of the systems of sol about organic alkoxide and inorganic salt are analyzed, and further development are discussed. It is pointed out that sol-gel method is an effective and feasible means to prepare p-TCO thin films.

本文介绍了铜铁矿结构p-TCO的结构特性以及溶胶凝胶法的基本原理和特点；系统地介绍了溶胶凝胶法制备铜铁矿结构p-TCO薄膜的工艺；分析比较了有机醇盐、无机盐溶胶体系的优缺点；最后讨论了进一步的发展方向，指出溶胶凝胶法是一种高效可行的制备p-TCO薄膜的方法。

Three methods of physical modification,calcification and amidation were used to improve the rigidity of oxidized wax,and their technical conditions,advantages and disadvantages were studied and summarized respectively.

通过物理改性、钙化、酰胺化3种方法来提高氧化蜡的硬度，研究了其工艺条件，讨论了3种方法的优缺点。

Three methods of physical modification, calcification and amidation were used to improve the rigidity of oxidized wax,and their technical conditions,advantages and disadvantages were studied and summarized respectively.

通过物理改性、钙化、酰胺化3种方法来提高氧化蜡的硬度，研究了其工艺条件，讨论了3种方法的优缺点。采用模拟燃煤烟气方法，研究了石灰湿法燃煤烟气脱硫过程中CO2钙化问题，指出了烟气脱硫过程中CaCO3的生成量与脱硫液初始pH值、SO2初始浓度、温度的关系，得出抑制CaCO3生成的条件，为减缓石灰湿法燃煤烟气脱硫存在的结垢现象，对石灰湿法燃煤烟气脱硫系统的实际应用具有一定的指导和借鉴价值。

The effects,advantages and disadvantages of anionic and cationic membranes and their combinations under different conditions were compared.

结果表明单阴膜法在处理pH值为0.5～1.0，初始镍的质量浓度为1000～2000mg／L的废水应用中有更好的处理效果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。