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The ability of filtering feeder of Corbicula fluminea can used to remove algae in water and control formation of the eutrophication.

以台湾蚬对藻类的高除能力,可以用在生态工法里面,当去除水中藻类或叶绿素a的含量,以减少水质朝向优氧化的好物种。

The effects of temperature,body weight and food density on filter feeding rate and assimilation efficiency of Corbicula fluminea were studied under artificial conditions in laboratory.

在室内实验条件下,研究了温度、体重和饵料密度对河蚬食率和同化率的影响,此外还进行了饵料质量对河蚬同化率影响的实验。

Corbicula fluminea; temperature ; body weight ; food density ; food quantity ; filter feeding rate ; assimilation efficiency

河蚬;温度;体重;饵料密度;饵料质量;食率;同化率

Objective To explore the possibility for application of ultrafiltration membrane technology to purify Rhizoma Corydalis Decumbentis total alkaloids.

目的 探讨应用超膜分离技术纯化夏天无总碱工艺。

First of all, this paper selected a wide range of spectral response, short response time, photoelectric conversion efficiency, pn junction area of silicon photovoltaic cells, as the light meters photoelectric conversion of the probe, and it creates a separate probe light and increase to the filter and cosine amended, and separated from the fuselage, better adapted to the cosine law and improve the measurement accuracy and scope.

首先,本文选用了光谱响应范围宽,响应时间短,光电转换效率高、pn结面积大的硅光电池作为光照度计的光电转换的探头,并把它做成一个单独的光探头,并加了以v光器和余弦修正器,与机身分离,更加适应余弦定律,提高了测量的精度和范围。

Therefore, we studied two levels of biochemistry processing water leakage again in turn after the ozone tower, the ceramic filter the tower and the activated charcoal tower union depth processing craft again, this place principle craft its COD remove rate was 72.8%, anionic surfactant medicinal preparation remove rate was 90.9%, petroleum class remove rate was 78.8%, the total phosphorus and total nitrogen remove rate separately was 73.8% and 82.7%, the final water leakage might directly use in the city afforests, flushes the restroom, eliminates and washes the vehicle and so on, had the good environment, the society and the economic efficiency.

为此,我们又研究了二级生化处理出水再依次经过臭氧塔、陶塔与活性炭塔的联合深度处理工艺,该处理工艺其COD去除率为72.8%,阴离子表面活性剂去除率为90.9%,石油类的去除率为78.8%,总磷和总氮的去除率分别为73.8%和82.7%,最后出水可直接用于城市绿化、冲厕、扫除及洗车等,具有良好的环境、社会和经济效益。

What about this topic and the use of S creatinine and estimated glomerular filtrate rate?

那么关于血清肌酐和肾小球过率的应用方面将会有什么热点话题要讨论呢?

This article focuses on the line-line, line-region and region-region topological relations algorithm, which come down to the same question: whether there are intersections between line and line. The sweep-line algorithm was studied by many people, but has some deficiencies to be improved, in order to handle some special cases and increase program efficiency. My works as follows: rectangular envelope to reduce executive times , vector cross multiplication to determine intersection between line and line, coordinates and slope method to deal with some special cases. C program examples are showed together.(5) Finally, to prove capability and efficiency of the model and calculation method, some test systems are developed. For example, complex spatial topological relation query, parcels' exact area with the area of linear object reduced in land use, quality inspection to cadastral data according to topological rule, spatio-temporal change query of cadastral data.

将线线、线面、面面之间的拓扑关系实现的算法归结为线与线之间求交的基本问题;为处理一些特殊的拓扑关系情况,提高扫描线算法的效率,探讨了包络矩形粗、判断线线是否相交的矢量叉乘法、线节点重合或共线的斜率坐标判断法等改进方法;同时还设计了一种新的节点微小圆求交的算法,可应用于图斑与线状地物细分拓扑关系及地类面积的计算;(5)本文设计了实验系统,包括复杂对象的拓扑关系表达与计算程序、图斑地类面积的计算程序、基于空间拓扑关系规则的地籍数据库质量检查功能,以及时空拓扑关系和变化语义分析等原型,验证了拓扑关系表达模型和计算方法的可行性和实用性。

In order to apply the methods of the harmonic retrieval and the noise filtering based on the cumulant being used widely to the real data processing, these methods should be studied further.

并指出了大量理论研究所广泛采用的累量自身、基于累量的谐波恢复方法和基于累量的噪方法在实际应用过程中的缺陷以及进一步研究的意义。

According to problems with the cyanidation press filtration feed system in Gaoyao Hetai gold mine ,some reforms were carried out.

针对广东高要河台金矿选冶厂氰化压给料系统存在的一些弊端,对其进行技术改造。

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推荐网络例句

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%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。