压

Its amount has relation with acting load. The influence on sectional curvature of bending components is the greatest one, the ultimate curvature of corroding section decrease obviously, and the sectional curvature increases rather sharply with the increase of rust rate during the process of corrosion. The anti-cracking capacity of prestressed bending R. C. components may be damage. For the convenience of engineering usage and damage evaluation of structure, this paper presents a concept of sectional damage coefficient on the foundation of experimental and treatment study.

试验与理论研究均表明，受压区钢筋锈蚀后对普通钢筋混凝土和预应力钢筋混凝土受弯构件的承载力影响均不大，但对构件的正常使用性能有较显著的影响，受压区钢筋锈蚀过程中，截面刚度有较显著的下降，挠度及受压区混凝土压应变随锈蚀量增加而增加，增加值与使用荷载大小有关；受弯构件的截面曲率所受影响最大，锈蚀后截面的极限曲率有明显的下降，在使用荷载作用下，截面曲率则随钢筋锈蚀量的增加而有较显著的增加；而预应力混凝土受弯构件的抗裂度会下降。

The relationship between barotropic tidal currents and sea level were established for the first 45-day period using the transfer functions and harmonic analysis, and then carry the prediction for the second 45-day period. There is very good agreement between the observed and predicted semidiurnal tidal current, the rms error is less than 3 cm s-1. However, prediction on diurnal tidal current is rather disappointing, the rms error is about 19 cm s-1, suggesting strong baroclinic tidal component may have a significant contribution to the tidal current, which is not registered in the sea level records.

利用转换函数与调和分析两种方法，验证水位预报正压潮流的可行性，将观测资料分为等长的两段时期，藉由第一段时期约45天的正压潮流与水位的关系，预报下一段时期约45天的正压潮流，结果显示半日潮流的观测值与预报值大致符合，其均方根约在3公分/秒以下；但是全日潮流的观测值与预报值的差异大，其均方根最大可达到约19公分/秒，推测其原因为斜压潮分量大而影响潮流，但是不会对水位资料造成影响。

This paper firstly presents the expressions of energy consumption in two types of blank holding, the conventional hydraulic cushion and cushion-compensating cylinder, in single-action deep-drawing hydraulic press, and shows through comparison that the consumption in later is far less than in the former.

本文首先运用能量法推导了单动拉深液压机的两种压边方式即传统液压垫压边方式和液压垫-补偿缸压边方式的能量损失表达式，通过比较，得出后者在压边节能方面存在优势。

The design rules of accumulator type injector and slide valve are analyzed in this paper.

分析了蓄压式喷油器和滑阀的设计准则，并对蓄压式喷油器调压弹簧的刚度系数和蓄压腔容积以及滑阀的开启量和响应时间进行了设计与分

Pressure seal machine adopts the traditional way of vertical pressure seal,double stamping machines for in the same slideway,box by microcomputer control,high human-machine interface,change quickly,double stamping single one.

采用传统压印机垂直压印的方式，双压印机并列在同一导轨上，箱高通过微电脑控制，人机界面调整，换单迅速，双压印一次完成。

With the same idea for thin film test, a method was proposed to determine the yield strength and hardening index of small volume of material by indentation loading curve using spherical indenter.

通过对小体积材料球压入过程的数值研究，获得了小体积材料基本力学性能与球压入响应间的函数关系，并据此提出用球形压头的纳米压入加载曲线确定小体积材料屈服强度与硬化指数的新方法。

This paper studied the calculating method of the spiral-fluted tube's spinning force, which can provide basic theory for designing spinning shaping equipemnt, establishing spinning shaping technology and designing spinning tools.

摘 要：研究了薄壁圆管螺旋槽旋压成形时力的计算方法，可为设计旋压成形设备、编制旋压工艺、设计旋压工夹具提供理论依据。

It is a testing machine for pressure plate lift, pressure plate parallelism and pressure plate in working location, and Assembly for spiral spring clutch.

该机能够检测离合器压盘升程、压盘平行度、工作位置时压盘压紧力，而且还具有总装台的功能，能够总装螺旋弹簧离合器。

In this paper, the granule characteristics of limestone powder and the influence of stone powder content on the properties of RCC in Longtan Hydropower Station were studied, it was found that the workability of RCC would not be affected if replacing a part of fly ash with stone powder, but the compressive strength of RCC would decreased slightly.

为此，结合龙滩工程大坝碾压混凝土的特点，研究了石灰岩石粉的颗粒特性以及石粉含量对碾压混凝土性能的影响，发现用石粉取代部分粉煤灰不影响碾压混凝土的工作性，仅会使碾压混凝土抗压强度轻微下降。

The research results of the above have preferably solved the hot point problems discussed and studied in the process of the calculation of water diversion system unsteady flow of air cushion surge chamber, offer theoretical basis to accuracy calculation and reasonable design of air cushion surge chamber, and are helpful to make air cushion surge chamber more popularized in our country.

上述几方面内容的创新点就在于，实现了对气垫式调压室过渡过程的全面系统的研究，较好地解决了设有气垫式调压室的引水系统非恒定流计算过程中一直处于讨论、研究阶段的热点问题，为准确计算、合理设计气垫式调压室提供了理论依据，对加速推广气垫式调压室在我国的应用有很大帮助。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。