The glucoamylase was extracted and purified by PEG/(NH4)2SO4 double aqueous phase system.
利用PEG/（NH4）2SO4双水相系统从粗酶液中提取糖化酶。
Unbalances appear in a three-phase system when voltages or currents differ from on phase.
三相系统中，某的电压或电流与其它相不相同时，就出现幅值与或。
Pressure Oscillation often occurs in two-phase system even if it operates in steady state.
即使在稳态运行时，两相流体回路系统也经常会发生压力振荡现象。
The primary of a single-phase transformer is connected to one phase of the three-phase system.
单相变压器的提名候选人的预选会被连接到一状态的三状态系统。
The crystallinity and the lamellar thickness are not consistent with those in two-phase system.
结晶度和片层厚度与两相系统中的结果不一致。
The governing system of a hydraulic turbine is non-minimum phase system, and much difficult to control.
水轮机调节系统是非最小相位系统，是较难控制的一类系统。
Using the non minimum phase system parameter model transformation of the model for the controller design.
采用了非最小相位系统参数模型转换为参数模型的控制器的设计。
The unstable zeros of a non minimum phase system are difficult problems for feedforward controller design.
研究了非线性弱最小相位系统的状态反馈全局镇定问题 。
The unstable zeros of a non minimum phase system are difficult problems for feedforward controller design.
系统的不稳定零点给前馈控制器的设计带来了很大的困难。
In a given crisis and against a specific enemy, some sort of loitering boost-phase system could well make sense.
在危机已知，而且在针对某一特定敌人的情况下，某种处于上升阶段的寻飞系统是有意义的。
The aging or denaturalization can not happen in the CSP when phase system was transformed, so it has some stability.
所制备的CSP在相体系转化时不发生老化和变性，显示了一定的稳定性。
This paper is concerned with a design of a model refenrence adaptive control system (MRACS)for a nonminimum phase system.
探讨了关于非最小相位系统的参考模型自适应控制系统（MRACS）的一种设计方法。
The three phase system is more efficient in that for the same mechanical power a greater total electrical output is obtained.
三个阶段的系统，更有效，为同一机械动力更大的总电力输出表达式。
Moreover, the condition under which this aqueous two phase system are formed and the tentative law of phase equilibrium are in.
并探讨这种双水相体系形成的条件和相平衡的初步规律。
In recent years, aqueous two-phase system based ionic liquids are gaining wide recognition as novel 'greener 'separation systems.
近几年来，离子液体双水相作为一种新型绿色分离体系越来越受到关注。
Results showed clearly that p-xylene had good biocompatibility as organic solvent in the two-phase system, its relative amount was 15%.
研究表明，二甲苯作为两相中的有机溶剂具有较好的生物相容性，加入量在总体积分数的15%；
The experimental phenomena were interpreted and the method for estimating tray efficiency was verified by our data in three phase system.
随着固含率的增加，塔板效率先增加然后减少。并验证了气液塔板效率的计算方法可用于气液固三相塔板效率。
This paper studies corrosion and electro-chemical behaviour of steel in the two-phase system of petroleum hydro Caron and oil field Water.
本文研究了石油烃——油田水的两相体系中钢的腐蚀及电化学行为。
For a non_minimum phase system, the interaction of the system is viewed as measurable disturbance and decoupled using feedforward strategy.
针对非最小相位系统，将系统的耦合作用视为可测干扰，采用前馈方法予以消除。
The control principle, design idea and engineering fulfilment of TCT static var compensator in unbalanced three-phase system are introduced.
介绍了三相不平衡系统静止型动态无功补偿装置的控制原理、设计思想及工程实现。
Hydroelectric generating set is a non-minimum phase system which has some variable parameters. Only part of its states can be measured directly.
水轮发电机组是一个变参数的非最小相位环节，并且只有部分状态可直接量测。
The paper also refers several fuzzy PID intelligent composite control algorithms that are applicable to non-minimum phase system with time delay.
提出了几种适用于时滞及非最小相位系统的模糊pid智能复合控制算法。
In this paper a computer program was described, which is designed for analysis of polycrystalline electron diffraction pattern of a multi-phase system.
本文介绍为分析多相体系的多晶电子衍射图而设计编写的计算机程序。
According to the multivariable non-minimum phase system with time delay, the conditions of system decoupling and the points for attention are put forward.
对时滞及非最小相位的多变量系统，提出了系统解耦应满足的条件和需要注意的事项。
It is proved that UV channel is a minimum phase system and can use blind equalizer. Ber is not sensitive to the step size and tap number for CMA blind equalizer.
还证明了紫外信道是最小相位系统，可以进行盲均衡，结果指出，只要迭代次数足够，CMA盲均衡器输出误码率与滤波器阶数、迭代步长关系不是很明显。
A mathematical model was established to predict the electric field distribution around a single discrete phase in two-phase system applied uniform electric field.
针对均匀电场作用下两相系统中的单个离散相周围电场分布情况，建立了数学模型。
Analysis of electromagnetic configuration on a 2-phase system design is carried out and the detail data on characteristic of the motor have been obtained as well.
针对一种两相驱动的结构设计方案进行了电磁结构分析，得到具体的电机特性参数。
An unstable process is transformed into a minimum-phase system through mirror-injection, then solve the robust controller using closed loop gain shaping algorithm.
通过镜像映射将非稳定过程转换成最小相位系统，然后用闭环增益成形算法求解鲁棒控制器。
The defoamer not only can break foam rapidly, but also restrain foam forming effectively. Water phase system still keeps in its original condition after defoaming.
该消泡剂既有快速的破泡性，又有良好的抑泡性，消泡后水相体系保持原体系状态。
CONCLUSION the mobile phase system was improved, So the method was convenient, rapid, accurate, precise and it was not influenced when there are the degradation products.
结论本方法对流动相系统作了改进，方法简便、快速、准确，在降解产物较多时也适用。
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