查询词典 development test

In addition, some experience formulas for them are regressed. The third chapter establishes a unified S-N curve equation to calculate multi-axial fatigue ultimate strength of concrete considering both the effect of confinement and minimum/maximum stress ratio, based on the triaxial fatigue test data in this paper and the test results under uniaxial and biaxial fatigue loading in previous literatures. Moreover, the consistency of calculating condition fatigue ultimate strength with fatigue life distribution and initial ultimate strength distribution is analyzed.

第二章简要地介绍了本文三轴疲劳试验装置，进行了两向等侧压约束下混凝土立方体试件三轴受压等幅和变幅疲劳试验，分析了三轴受压疲劳破坏机理，给出了相应的疲劳破坏试验判断标准；得到了混凝土在两向侧压约束下单级和多级受压疲劳的变形发展规律，包括最大纵向应变、残余应变、最大纵向应变率和疲劳变形模量等随循环次数的发展规律以及疲劳损伤的演变规律，并给出了相应的经验公式。

First, the concept of parallel test is analyzed in detail, four sorts of structures adoptable for parallel test presently are presented and compared.

首先详细分析了并行测试的基本概念，介绍了目前实现并行测试可以采用的两大类4种结构，对这4种结构各自的优缺点进行了比较。

But when the test load is increased, the wear mechanism is dominated by spalling, and the test material weight loss is raised, therefore, the amount of hard phases can be decreased advisably. high carbon high alloy steel, hard phase, friction and wear

以航空发动机供油系统用Cr18Mo16V钢为原料，研究其基体和碳化物硬质点的结构和组成，并分析

The test resultsshow that friendly interface,simple operation,accuratedata,reliability and stability are obtained.The real-timemonitoring for all of the sensors in aerometry orlong-term test can be realized by this system.

该软件界面友好，操作简单，数据结果准确，并且运行可靠、稳定，既可以实时显示各传感器的全部动态响应过程，又可以进行长时间老化试验的观测。

The aerosol products to provide professional technical services, including the formula test, performance test.

提供专业的气雾剂产品技术服务，包括配方试验、性能测试等。

He gained operational test experience with the 422nd test and evaluation squadron at nellis afb, nevada.

他曾在位于内华达州的内尔尼斯空军基地的第422试飞评估中队从事试飞工作。

The 412th Test Wing manages flight operations for the Air Force Flight Test Center at Edwards AFB, CA.

第 412只测试翅膀处理在爱德华 AFB ，加州的到空军班机测试中心的操作班机。

In the US Air Force, developmental test pilots tend to be graduates of USAF Test Pilot School at Edwards AFB, California.

在美国空军，研究试飞的飞行员大都毕业于加利福尼亚州爱德华兹空军基地的美国空军试飞员学校。

AIO life style variables are employed for market segmentation; the research subjects are 57,298 college students in Kaohsiung; and this empirical study applies factor analysis, cluster analysis, chi-square test, discriminant analysis, ANOVA and Scheffe test.

以AIO生活型态变做为市场区隔基础、研究对象为大高雄地区大学日间部学生57，928人，用因素分析、集群分析、区别分析、卡方检定、变分析及雪费检定等统计方法进实证研究。

The identification method is studied and the transfer function of the automobile air brake unloading valve's test system is acquired;the pressure balance time of the test system of the unloading valve is studied by the increasing pressure in different speed and scope.

本文主要研究内容是汽车气制动卸荷阀性能测试系统的传递函数的辨识方法及不同的加压方式对系统压力平衡时间的影响并进行了相应的试验验证。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。