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In order to identified phase Ⅱ conjugates, the aglycones were identifiedafter rat bile was treated with either glucuronidase or sulfatase firstly. Phase Ⅱ conjugates were also separated anddetermined for their molecular ions by LC-MS, at last they were verified by identifying characteristic product ionsor precursor ions by MS-MS.

胆汁经过葡萄糖醛酸酶或硫酸酯酶水解,鉴定其水解产物,从而确定Ⅱ相结合物,再通过LC-MS分离和确定分子离子峰,最后利用MS-MS寻找特征子离子和母离子的方法进行验证。

As the complete characteristic curves of reversible pump turbine are often used to calculate the instantaneous parameters, this paper studies the characteristic curve and the wicket closure and opening law in pumped storage plants.Chapter 1 presents the importance and the necessity of this study and reviews the previous related research on hydraulic transient process and valve regulation in pumped storage plants.Chapter 2 analyzes the six collected characteristic curves of reversible pumped turbine and studies their diversification from the point of view of specific speed. The six collected discharge and moment curves with maximum efficiency have been fitted to piecewise continuous curves. This curve-fitting procedure is listed.Chapter 3 takes Liyang Pumped storage plant as an example and analyzes the effect of different characteristic curves on regulation guarantee parameters and the variety of its trochoid during the same operation status.Chapter 4 takes three pumped storage plants with different heads as examples and studies the characteristic of coordinated closure with wicket gate and ball valve and its effect on dynamic pressure in the spiral case, inlet pressure in the draft tube and the rise of rotating speed.Chapter 5 summarizes this paper and point out what should be done in the future research.

由于在过渡过程分析计算中,需要频繁利用可逆式机组的全特性曲线推求机组的瞬时参数,所以本文就特性曲线及关闭规律问题进行了研究,其主要内容如下:第1章,指出本文研究的意义和目的,回顾前人对水力过渡过程、抽水蓄能电站及阀调节的研究成果,在此基础上提出本文的研究内容;第2章,针对收集到的六套特性曲线,从比转速的角度出发来研究可逆式机组特性曲线的变化规律;并对六套曲线的最高效率流量和力矩曲线进行分段拟合,得到各分段函数的具体形式,再通过举例说明最高效率曲线的拟合步骤;第3章,以溧阳抽水蓄能电站为实例,分析讨论不同比转速特性曲线对调保参数造成的影响及对于相同工况其轨迹线的变化;第4章,结合高、中、低三水头段抽水蓄能电站,在导叶直线关闭的基础上,研究导叶与球阀协联关闭规律的特点及对蜗壳动水压力、尾水管进口压力及转速上升造成的影响;第5章,总结全文,提出今后研究的重点和方向。

The change phase is estimated by window and interpolation algorithm, and then a phase compensation function can be built accordingly. By multiply this function and the data sequence from the IFFT of the truncated data sequence spectrum in the time domain, the spectral leakages can be compensated when the new data sequence is transformed into the frequency domain by the DFT.

利用加窗插值的方法估计出该变化的相位,并利用估计结果构造出一相应的反相位函数,在时域上将这个反相位函数与由傅立叶反变换产生的离散序列相乘,得到新序列再通过一次傅立叶变换就可达到频谱校正的效果。

Use either coater coating usually also use sterilizatin or ultrared oven make solvent, and then by ultraviolet-curing.

利用上述任何一种涂布机涂布后,一般还要采用热风烘箱或红外线烘箱使溶剂挥发,然后再通过紫外线固化。

HMC1022 magnetoresistive sensor based on a weak magnetic field test system, in the intensity of magnetic induction into a small amount of DC voltage, the voltage level by the amplification for the amount of voltage into digital with TLC2543 volume, and then through the single-chip AT89S52 data processing, carried out using two-way LCD1602 display.

基于磁阻传感器HMC1022的弱磁场测试系统,在将磁感应强度转化为微小的直流电压量以后,经放大为伏特级的电压量用TLC2543转化为数字量,再通过单片机AT89S52进行数据的处理,用LCD1602进行双路的显示。

W - doped vanadium dioxide film was prepared by dipping V - W commixed sol on surface of glass slide and reducing in hydrogen atmosphere.

采用钒-钨混合溶胶及浸渍提拉法在玻璃基片上涂五氧化二钒膜,再通过氢还原法制备掺钨二氧化钒薄膜。

Sewerage pump pool must be installed at lower place,designed for discharging the castoff that producted by men in time.all the live draining water from the basement,such as basin,commode,washer machine,fabric pool,shower bath and bathtub so on contact with the sewerage pump pool ,and than drain into sewage well outside by passing through the watershoot,the pump pool should not have water ,or it will drunk the pump machine bad,make which can not operate normally.

对我来说有点难,请高人帮忙看看如何翻!急!污水泵池是为了及时排出生活中所产生的废弃物而设计的,必须安装在较低的位置。地下室所有的生活排水,如:面盆、恭桶、洗衣机、墩布池、淋浴间、浴缸等设施的排水都要经过排水管道与污水泵相连接,再通过排水管道直接排至室外污水井,泵池内不应有水,否则会泡坏污水泵电机,导致电机不能正常运行。

The concept stems from the notion that by digging an imaginary well from China and through the earth's core one can reach Chile when the well-turned tunnel is put through.

但是靠什么才能激发彼此兴趣?智利馆有一个点子,就是挖几口真的水井,再通过高科技手段,让中国参观者从水井中就能望见智利人民实时的生活图景。

Therefore, this article first has made abasic elaboration to the brand and the brand strategy, againimplements the brand strategy through Haier and the Aucma twoenterprises the case to analyze the present our country enterprise thetypical question which existed in the formulation and implementationbrand strategy process, and proposed our country enterpriseestablished the well-known brand and the implementation brand strategyway

因此,本文首先对品牌和品牌战略做了一个基本的阐述,再通过海尔和澳柯玛两个企业实施品牌战略的案例分析了目前我国企业在制定和实施品牌战略过程中存在的典型问题,并提出了我国企业建立知名品牌及实施品牌战略的途径。

The method takes microcrystalline cellulose as affinity column chromatographic medium of Beta-glucosaccharase; under low temperature and anacid condition, the sample of Beta-glucosaccharase is loaded and specifically adsorbed to the microcrystalline column, and then the concentration of NaCl is increased to elute the enzyme, so as to achieve high-efficient and economic separation and purification.

本方法以微晶纤维素作为β-葡萄糖苷酶的亲和柱层析介质,在低温和微酸性条件下,将β-葡萄糖苷酶上样并特异性吸附于微晶纤维素柱,然后再通过增加NaCl浓度的方法将该酶洗脱,从而达到其高效而经济分离纯化的目的。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力