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Moreover, this kind repairers suitable temperature range is wide, from 0°C to 35° C, and can be used in the whole year. The cement concrete pavement fast repairer has a long time to be used in construction and is easy to operate, so it can be widely used in road construction.This thesis reports the present development situation of Portland cement concrete pavements in Sichuan Province. It focuses on the investigation of pavement conditions in the northern section of Dajian Road, the Chengdu-Longquanyi section of Chengdu-Chongqing Freeway, and Chengdu-Wenjiang-Qionglai Highway.

论文全面总结分析了四川省水泥混凝土路面的发展现状，重点对大件路北段、成渝高速成龙段、成温邛公路三个路段的水泥混凝土路面破损情况进行了调查，分析了主要的破损类型并进而指出了四川省水泥混凝土路面发展中存在的问题。

Although many researchers have studied the synthesis of allyl phenyl ether by phase-transfer catalysis, no studies have used it in membrane reactor up to now. The purpose of this paper is to combine the studies of membrane reactor and phase-transfer catalysis. The membrane was used to stabilize the aqueous/organic interface at a fixed position, also the quaternary ammonium ion in the membrane was used as the catalyst to partake in the reaction system directly, and so it can also separate the product and reactants at the same time. A theoretical model is also presented.

中文摘要对於利用相间转移触媒催化技术来合成丙烯基苯基醚的反应，已有不少专家学者研究过，而至今还无在薄膜反应器中进行此反应之研究，本研究则是要结合薄膜反应器与相间转移触媒两者之特性，固定水油两相之界面，并且利用薄膜上的四级铵离子为触媒，直接在反应系统中参与反应，并同时分离产物及反应物，进而推导出相关之理论模型。

A seven-position progressive die was developed in which automatic feeding was used in initial locating,pilot pin was used in exact positioning,float stock guide pin was used in leading materials,the blanking and bending of the part were carried out continuously and finally the finished product was cut off.

分析了支架零件的成形工艺，介绍了1副利用自动送料初定位，导正销精定位，浮料销导料，连续进行零件轮廓冲切、弯曲，并最终将成品切离坯料的7工位级进模设计。

Results: 143 of 182 patients used the BZD, who were 78.87%, 123 patients used a single BZD, and 20 patients used two kinds of BZD. The kinds of using BZD were diazepam, estazolam, alprazolam, clonazepam, corazepam, nitrazepam in turn.52 of 66 patients were visited, 18 patients were BZD dependence, who were 34.62%.

结果：调查发现182例住院精神病患者中143例应用过BZD，占78.87%，其中单用1种的123例（86.01%），2种合用的20例（13.99%），药物应用依次为地西泮、艾司唑仑、阿普唑仑、氯硝西泮、劳拉西泮、硝西泮等，随访的66例患者中，因故仅随访52例，BZD依赖18例（34.62%）。

Results: 143 of 182 patients used the BZD, who were 78.87%, 123 patients used a single BZD, and 20 patients used two kinds of BZD. The kinds of using BZD were diazepam, estazolam, alprazolam, clonazepam, corazepam, nitrazepam in turn.52 of 66 patients were visited, 18 patients were BZD dependence, who were 34.62%.

结果：调查发现182例住院精神病患者中143例应用过BZD，占78.87%，其中单用1 的123例（86.01%），2种合用的20例（13.99%），药物应用依次地西泮、艾司唑仑、阿普唑仑、氯硝西泮、劳拉西泮、硝西泮等，随访的66例患者中，因故仅随访52例，BZD依赖18例（34.62%）。

It also becomes more difficult to model and simulate power grid. Traditional"Quasi-stationary"phase models can't be used for studying electromagnetic transient phenomena; on the other hand, the EMTP models can be used to analyze the electromagnetic transient accurately, but for the limitation of the step size, it can't be used to simulate the large network with a high speed.

这对电力系统的建模和仿真提出了更高的要求，传统的机电暂态模型由于建立在&准稳态&假设基础之上，因此不能用来仿真变化迅速的电磁暂态过程；而电磁暂态模型，虽然能准确反映电磁暂态过程，但由于仿真步长很小，仿真速度受到限制，不适合用来仿真大型电力系统。

Its evergreen leaves of the four seasons could be used to build the northern winter hardy turf, flower beds, flower niche habitat, its high degree of shade tolerance could be used to build inter-city high-rise green, its white flowers neatly in line could be used in landscaping.

因其叶片四季常绿，可以用于北方构建冬季耐寒型草坪、花坛、花境；其高度的耐阴性，可以用于构建城市高楼间的绿地；其整齐一致的白色花朵可以用于园林绿化中景观配置。

The regenerating method invention thereof comprises the following steps: firstly, the treating tea after absorbing the heavy metal ions is washed by water to the neutral after HCL solution is used for eluting; and secondly, the NaOH solution of a certain proportion is used for flowing through the column, and then water is used for washing to the neutral.

其再生方法包括：(1)将已吸附了重金属离子的处理茶，用HCL溶液洗脱后用水洗至中性；(2)用NaOH溶液的比例过柱，再用水洗至中性。

Revised and improved in this work are, the apparatus used to measure the critical parameters, vapor pressure, saturated liquid and vapor density; the Burnett apparatus used to measure the PVT properties; the apparatus used to measure the surface tension and the sealed capillary viscometer.

研制了新的临界参数与饱和蒸气压测量装置、 Burnett 法测量 PVT 性质装置等；改造了现有的表面张力与粘度测量等实验装置；对二甲醚的热物理性质进行了详细的实验研究。

The key component "four-way value"used in air-conditioners,the control valve used in gas heaters and stoves,the water feeding regulating valve used in the clothes washer,the hydraulic air operated valve core and automobile components and devices for fuel jetting ,feedback and baking,etc,all require a large amount of fixed valve cores and sliding core components made of free-cuting,stainless and sofe magnetic alloys.

空调机内的关键部件&四通阀&、燃气热水器及灶具的控制阀、洗衣机中输水调节阀、液压气动阀芯及汽车电子燃料喷射反馈刹车用元器件等需要大量由易切削不锈软磁合金加工成的定阀芯和动滑芯元件。

The network space is the typical form of abstract space when it comes to the digital stage.

网络空间是抽象空间数字化阶段的典型形式。

The Notarial System,as the system of judicial certification in our country,is both the constructor and the defender of social credit system,It has its special value and function in the social honesty.

公证制度作为我国司法证明制度，既是社会信用体系的建设者，同时也是社会信用的捍卫者，在诚信中有其特殊的价值和功能。