查询词典 test paper

Taking the seedlings of Quercus glauca, a dominant evergreen broadleaf tree species in subtropical area, as test materials, this paper studied their photosynthesis, chlorophyll fluorescence, and chlorophyll content under effects of simulated acid rain with pH 25, 40, and 56. After 2-year acid rain stress, the net photosynthetic rate of Q.

选择亚热带常绿阔叶林优势树种青冈幼苗为研究对象，设置3个酸雨处理：pH 2.5、pH 4.0、pH 5.6，研究不同强度的模拟酸雨对青冈幼苗光合特性、叶绿素荧光参数和叶绿素含量的影响。

High voltage power transmission faces the problem of high altitude in China. In this paper, a mobile corona test cage is firstly applied to measure the AC corona audible noises of three types of transmission bundle lines in four areas with different altitudes. The effect on audible noise from altitudes was analyzed in details.

我国高压输电线路面临着高海拔特殊问题，利用可移动式电晕笼系统在4个不同海拔对3种导线进行了交流电晕可听噪声试验研究，得出了可听噪声海拔修正的初步结果。

Through the test of water absorbing, water holding and water releasing performances of all water retention agents, sawdust, vinegar stillage and cabbage palm, this paper points out the affect on ecological concrete of different water retention agent and also conclude the affect on ecological concrete holding water or water releasing of spacing ratios, water retention agents, materials addition and different stones.

通过对SAP高吸水树脂、聚丙烯酰胺和甲基纤维素三种保水剂、锯末、醋糟、棕榈对生态混凝土吸水、保水、失水性能的测试，分析得出三种保水剂对生态混凝土的影响关系以及阐述了空隙率、保水剂、添加剂以及骨料种类对生态混凝土保水和失水的影响；最后对保水剂进行了优选，并对保水机理进行了探索性研究。

Seventhly, a series of experiments and projects were carried out for verifying the previous theory. First, the cable force control test of reticulated shell-string structure in 2.2m×4.6m was conducted using the arithmetic presented in the paper. Second, the numerical analysis during construction, the adjustment of cable forces and the changing of cable of the Beijing North Railway Station were conducted.

为了进一步验证本文前几章有关预应力空间钢结构索张拉计算方法的正确性，本文进行了一系列的试验研究，包括：用提出的基于索原长反分析法对一2.2m×4.6m的小型张弦网壳进行索张拉成形的试验研究；对北京北站进行了模型施工过程分析、模型索张拉力的调整、换索试验研究。

In this paper,main structure features,performance,parameters,and test conditions of depressed bottom container cars and caboose cars exported to Burma are introduced.

介绍了出口缅甸集装箱凹底车和守车的主要结构特点、性能及参数、试验情况。

By comparing and demonstrating, this paper adopt activated carbon as sorbent, carbon bisulfide as the research object, nitrogen as carrier, microwave as the measure of regeneration to test study.

二硫化碳在工业上应用广泛，吸附法处理低浓度CS_2废气技术近年来在不断的研究完善中，采用微波解吸研究是吸附法研究比较热门的课题。

This paper mainly aims to investigate the 2,3-cresotic acid s composion by carboxylation and its pilot-plant test.

酚类的羧化反应早期常采用固相直接羧化法，70年代国外逐步改用溶剂悬浮羧化法。

This paper deriving the theory workinflection point in the static stage characteristics curve of small measurement range lineardimension measurement .by the way of high pressure and back pressure pneumaticmeasure and designed the parameter of the mainly and measure spray head, which are thekey component in the spray head-baffle pneumatic sensor .The different groups for themain-spray head and the measure spray head ,will effect the dynamic and static stagecharacteristic parameter .The author have done contrast experiment and optimizationdesign to test and verify the theory derivation whereby made the rang of show valve ofpneumatic measure system measure range up to 40 μ m, the sensitivity up to 100mv/μ m,resolution up to 0.05 μm, the uncertainly of measure is less than 0.02 μm, satisfaction ofrequirement of groups the carboy hatch thickness size precise measure of soft shims.

对高压背压式气动测量用于小量程线性尺寸测量的静态特性曲线的理论工作拐点进行了推导，对气动测量系统中的喷嘴-挡板型气动传感器中的关键部件——主喷嘴和测量喷嘴的参数进行了理论设计，对主喷嘴和测量喷嘴的不同组合，将影响测量系统静、动态特性指标的喷嘴参数进行了对比实验和优化设计，并通过实验验证了理论推导，从而使气动测量系统量程的示值范围达到40μm，灵敏度达到100mv／μm，分辨率达到0.05μm，测量不确定度小于0.2μm，满足了压缩机缸盖软体垫片厚度尺寸精密测量分组的要求。

A kind of method to evaluate and test the tension-compression fatigue strength of gray cast iron was introduced in this paper.

介绍了一种评价与测试灰铸铁铸件的拉压疲劳极限的方法。

This paper shows the test results of certain celestine ore.

论述了某天青石矿浮选试验研究结果。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。