|
According to shearing deformation principle of continual elastic support, this paper analysis the natural frequency of the single-layer workshop roof system.
|
|
|
摘要提出按连续弹性支座剪切变形原理分析单层厂房屋盖体系自振频率，介绍不同类型的支座对屋盖自振频率的影响，并采取有效措施，避免厂房引起共振。 |
|
According to similar natural condition and different years of de-farming, this research studied nitrogen variation features of the desertification soils of different de-farming and wasteland in the western Karst region, Guizhou province.
|
|
|
摘要研究以贵州西部喀斯特石漠化地区退耕弃荒地土壤为研究对象．在保证自然因素相对一致的条件下，根据退耕年限的不同和有无梯化过程，采集土壤样品进行全氮及氮素形态的化学分析。 |
|
According to simulated results, we can get the range of side pressure relief at the mining face, at the upper coal or the lower coal under the peculiar condition.
|
|
|
根据模拟结果得出：特定开采条件下，上部或下部不同煤层采煤工作面侧向却压区范围。 |
|
According to site monitoring results of actual project, the advantage of pipe jacking technology in the city's environmental protection is analyzed; when the pipe jacking technology is combined with information construction, it can be applied in the city'
|
|
|
摘要结合实际工程现场的监测结果，分析了顶管施工技术在城市环境保护方面的优势和应用实例，指出顶管技术通过与信息化施工相结合，可以广泛地应用于城市的基础建设中。 |
|
According to social systematic project of uniting town and country, it is important to explore various ways of city driving rural construction, to realize the economic coordination mutual development of town and country, taking industry as link.
|
|
|
西安应按照城乡联动的社会系统工程规划，积极探索城市对农村建设的多种带动方式，以产业为纽带，实现城乡经济协调与互动发展。 |
|
According to some common problems of aseismic design for cement-brick building with ground two-floor frame aseismic walls, the thesis raises opinions such as resonable layout for the ground two-floor frame aseismic walls, shear-resist and bend-resist abil
|
|
|
就底部两层框架抗震墙砖房抗震设计的几个问题，提出底部两层框架抗震墙体系的合理布置，过渡楼层抗剪抗弯能力应适当增强，以及构造措施等。 |
|
According to some doctors, tobacco, when smoked in moderation, is not so harmful and might even be beneficial in relieving feelings of stress ad fatigue.
|
|
|
有些医生认为，适量吸烟，不仅危害不大，甚至对消除紧张与减轻疲劳是有益处的。 |
|
According to some estimates, 50 million acres of rain forest are cut down every year.
|
|
|
据一些人士估计，每年遭砍伐的热带雨林面积达5000万英亩。 |
|
According to some estimates, Chinese factories could by 2007 turn out a third of the world's electronic products, from mobile phones to video players.
|
|
|
根据某些估计，到2007年，世界上三分之一的电子产品将在中国生产，这些产品从移动电话到录像机，无所不包。 |
|
According to some hypothesis about tool surface, the relationship among the friction, roughness and hydrostatic stress was derived, and the limited hydrostatic stress was got when the sticky friction takes place.
|
|
|
同时，根据对工具表面的某些假设，推导了摩擦应力与粗糙度和静水压应力等之间的关系，并求出了发生粘着摩擦所需的静水压应力。 |
|
According to some model test results of fishing vessels in the developed fishery countries, through analyzing the capsizing mechanism of fishing vessels, author gives some measurs for improving the stability of fishing vessel in rough sea, which include h
|
|
|
为此，作者根据海洋渔业发达国家进行的一些渔船稳性的船模试验研究结果，经过对渔船倾覆机理的分析，提出改善渔船风浪中稳性的一些措施，包括如何合理设计与布置舷墙排水口，确保船体开口水密设施的可靠性以及采用双体渔船等。 |
