低

At present inland the shortcoming in separation is that the resolution and use ratio of resin is low, the amount of coloring matter contained in products is too high, and the purity and yield of nucleotides is too low and etc.

目前国内在分离方面存在的缺点是：所用树脂的分离度低；树脂利用率低；所得产品色素含量高；产品的收率和纯度较低等。

At present inland the shortcoming in separation is that the resolutionand use ratio of resin is low, the amount of coloring matter contained in products istoo high, and the purity and yield of 5'-Cytidine triphosphate is too low and etc.

目前国内在分离方面存在的缺点是：所用树脂的分离度低；树脂利用率低；所得产品色素含量高；产品的收率和纯度较低等。

This method can be used to reduce power dissipation of combinational logic.

本文通过上述问题的研究，在设计流程的不同阶段解决自测试设计的测试功耗问题：在高层综合阶段，引入功耗约束和模块随机响应模型，自动生成低测试功耗、低面积开销的RTL电路结构；在逻辑综合阶段，针对测试功耗分别优化了电路结构和测试向量生成电路，以微小的故障覆盖率和面积开销为代价，最大程度降低测试功耗。

By detailedly deriving the equations of the input impedance, transconductance, voltage gain and noise figure, an inductive degeneration common emitter low noise amplifier which is used in an ultra high frequency receiver chip is designed.

通过详尽推导电感负反馈共发射极低噪声放大器的输入阻抗、跨导、电压增益以及噪声系数的表达式，讨论并设计了一个应用于超高频接收芯片的低噪声放大器。

But in all methods of making PFS exist the common problems of low utilization ratio of raw material, high cost of energy, long cycle of reaction, great amount of investment, low productive efficiency, complex working procedure of treatments afterwards and toxicity of catalyst, etc.

但在现有各种制备方法中，普遍存在的问题是原料利用率低、能耗高、反应周期长、投资大、生产效率低、后处理工序复杂以及催化剂的毒性等。

This paper presents the design and development of a DSP2812-based mobile sensor network experimental platform,which is composed of sensor nodes equipped with low cost,low power sensors and wireless communication unit.

介绍了一种基于DSP2812的动态传感器网络实验平台的设计与开发。该实验平台的设计由配备各种低成本、低功耗的传感器和无线通信模块的可移动的传感器节点组成。

ABSTRACT Over the last few years much attention has been paid to the development of the technologies for Community Antenna Television networks. New technologies that can be used to support data communication service over CATV networks are developed. The new Hybrid Fiber Coaxial technology is spreading out rapidly in CATV networks. The usage of fiber provides large bandwidth and thus enables some new services to be delivered along with television broadcast. The CATV networks are expected to support diverse traffic with various service requirements.

随着新技术的不断发展，人们希望能够利用有线电视网络提供新的业务，HFC技术在有线电视网络中的广泛使用使得有线电视网络的带宽增加，也使得有线电视网络除电视广播外还能够提供其他的服务，这些服务的服务质量要求各不相同，如：数据服务要求低的丢失率，对延时的要求较低；而语音服务可容忍一定的丢失，但对延时、延时抖动有严格的要求，因此需要开发新的协议。

Only in the limit of large N and low excitation condition, i. e. in low density region, the exciton operators can satisfy the normal bosonic commutation relation.

而在大N极限下和低激发的情况下，即低密度情况下，激子算符满足通常的玻色对易关系。

Next is the analysis and comparison of four main design method used in low specific ratio design.

然后分析了低比转速设计理论，主要是低比转速三种设计方法的优劣。

Alkoxyhydroxylpropylchitooligosaccharide and quaternary ammo-nium-hydroxylpropylchitooligosaccharide possess certain emulsifying property, good hygroscopicity and humidity-retaining ability;the former also possesses good compatibleness, the latter also possesses good generating and stabilizing foam ability.

烷氧基羟丙基甲壳低聚糖和季铵基羟丙基甲壳低聚糖具有一定的乳化性能和良好的吸湿保湿性能；而且前者的配伍性能良好，后者表现出优良的泡沫性能。

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。