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The results show that the extraction rate of hyaluronic acid is proportional to the concentration and the electric current.

结果表明,透明质酸透过膜的速度在一定范围内与料液的浓度和电流强度成正比,在pH7~9范围内透明质酸的电迁移率基本保持恒定。

EA high , low and without load controller : the balance suspending machine with the controller was designed for high – speed, invariableness weight and repeat carried of the parts .

高、低、无负载控制器:配有控制器的平衡吊是为胜任高速、恒定重量、重复的零件搬运操作而设计的。

The study shows that through choosing the characteristics of the feedwater valve and throttle valve in the equipment, the shifting run of turbine pump, can realize the pressure drop of the feedwater valve invariableness, which can reduce the energy loss and improve the control characteristics of the feedwater system.

本文的研究表明,在核动力装置二回路给水系统中,通过选定节流阀和给水阀特性,由水泵变速运行可以实现给水阀两端的压差恒定,大大改善了给水系统的控制特性。

It was showed that throughout the nuclear division, nuclear membrane did not disintegrate,lamina always existed; But only one lamin peptide (similar to lamin B in higher eukaryotes) was expressed during division,ant its expression quantity changed according to the progress of division: in interphase, lamin was constant; when entering G1 phase, lamin increased sharply; then, increased slowly untill division finished.

结果表明:在整个核分裂过程中,核膜不崩解,核纤层结构一直存在;但随着分裂的进展,始终只有一种成分(类似于高等生物lamin B )的表达;其表达量随着分裂时相的推移而变化:间期时,比较恒定,进入G1期时明显增加;以后不断略有增加,直到分裂完成。

At a constant shearing rate,the influences of montmorilonite loading on the shearing stress and apparent viscosity were similar.The reduction of the viscous activation energy with the increm...

PA611/蒙脱土纳米复合材料的粘流活化能随剪切应力的增大而降低,说明在恒定剪切应力下其可在较宽的温度范围内加工、成型。

Different surgical approaches to the sphenoid sinus should be chosen based on the target of the operation; the arcus choanalis, the middle and superior turbinates are invariable orientative landmarks for sphenoid sinus.

根据手术的目的可以选择不同的方法开放蝶窦,中鼻甲、上鼻甲以及后鼻孔弓都是定位蝶窦的恒定标志。

Basing on Fuzzy reasoning technology, this paper introduces the work flow of Gas water heater, and the trait of papilionaceous valve.

讨论了模糊推理算法在燃气热水器中的应用,此算法不依赖于被控对象精确的数学模型,主要是通过控制燃气流量即控制燃气蝶阀来达到恒定温度的目的。

The constant back pressure cavity with papilionaceous slot is found to be of good economy and reliability by means of analyses for various back pressure cavities.

通过几种形式的背压腔结构分析,认为带蝶形槽的准恒定背压腔结构具有较好的经济性及可靠性。

Governing equations of nonprimatic channel unsteady flow are simplifiedly analyzed with the expressed form of channel parabolic cross section by variation of distance,and applied with dam sudden release problem in nonuniform wetted perimeter cross section on neglecting friction and slope effects.

利用明渠沿程抛物型断面的概化关系式,对棱柱体明渠非恒定流的控制方程进行简化分析,并应用于忽略底坡和摩阻影响的非单一湿周断面明渠瞬时全溃问题。

In this trial, they were compared that the differences of performance of AA Broilers and Beijing Fatty Chickens in unartificial environment in different growing period, studyed the effect of durative and steady high ambient temperature to the performance、meat quality and meat flavor of 56 days AA Broilers、56 days Beijing Fatty Chickens and 100 days Beijing Fatty Chickens, and talked the mechanism of the effects.

本研究在对自然环境条件下各生长阶段AA肉鸡和北京油鸡生产性能比较研究的基础上,系统研究了持续恒定高温对56日龄AA肉鸡、56日龄北京油鸡、100日龄北京油鸡生产性能、肌肉品质及风味特性的影响,并对造成这一系列影响的机理进行了初步探讨。

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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.

老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。