查询词典 Spring nut

Secondly, ephemeral gully erosion in the spring is a little serverer than that in the summer, and soil loss in the spring is 56% of annual value of ephemeral gully ersoion which is 1.8 times of soil loss tolerance in the region.

在主要影响因素上，春季浅沟受冻融、融雪影响显著，在表层土壤解冻、地表裸露和季节性冻土层存在的条件下，融雪及降雨容易造成强烈的浅沟侵蚀；夏季浅沟由暴雨造成。

Spring is the best season to plant trees and there is a Tree Planting Day in spring, on March 12th.

春天是指数的最好季节，在春天还有一个植树节呢！

I like spring best,because I can see many beautiful flowers and the green glass,and I can plant trees on the Tree-planting Day in spring.

春天来了，我最喜欢的就是春天了，因为我可以看到很多漂亮的鲜花和绿油油的小草，并且我还可以在植树节去植树。

The steel selected for this investigation is spring steel 50CrVA for automobile in this paper,the appropriate duplex microstructure of lower bainite and martensite was obtained through isothermal quenching and low temperature tempeing heating treatment,then the effect of duplex microstructure and tempered troostite on strength-toughness of spring steel 50CrVA is compared.

以汽车用弹簧钢50CrVA为研究对象，通过等温淬火+低温回火热处理工艺获得适当比例的回火马氏体和下贝氏体的复合组织，并在此基础上比较复相组织和回火屈氏体对弹簧钢50CrVA 强韧性的影响。试验结果表明：在弹簧要求的HRC硬度在50~54范围内，在910℃保温30 min+360℃等温20 min淬火+300℃保温60 m in回火工艺得到复相组织的强韧性最好

Traditional fixing method of the spring causes measuring error and it's unallowable for this miniature spring. So the whole measuring instrument is designed systematically and the development of new fixing and positioning devices are focused on. The new fixture method is analyzed by FEA and results are good.

随后各章论述了新型刚度测试仪器的研制过程，对于传统弹簧的安装夹紧方式在刚度测试中引起的测量误差进行了分析，对于微小型扭转弹簧的刚度测试而言，这是不能允许的超大误差，为此，在系统地设计完成了整体测试装置的基础上，重点研制了新颖的弹簧的定位夹紧结构，对于该定位夹紧结构方案也利用有限元分析软件进行了仿真分析，结果表明比较理想。

In ground testing research of some large airplane and aerocraft, suspend structure of sky need to be simulated. As a lower natural frequency and a good underprop, air spring can satisfy the need of the testing research. In this paper, a calculating model of air spring was built by ABAQUS.

一些大型的飞机，航天器等在做地面试验的时候，需要模拟空中的悬浮结构，由于自身的固有频率比较低，所以需要更低固有频率的支撑物，而空气弹簧正好可以满足试验的需要。

Although the Beijing March spring answer the earth, but people still feels carry secretly is returned to wear a few minutes in vernal spring breeze unexhausted chill.

虽然三月的北京春回大地，但人们仍感到在和煦的春风中还夹带着几分未尽的寒意。

In hear " mountain fastness spring is late " collect each folk grass after the message of root program, unhesitating region wears his fine long hair his baby bicycle comes " mountain fastness spring is late " the spot.

在听说"山寨春晚"征集各路民间草根节目的消息后，他毫不犹豫地带着他的宝贝自行车来到"山寨春晚"的现场。

For eliminate redundant stress in spring unit brought by continuously variation of strain,in wind spring device,the adopt spiral output wheel with continuously variant radii was used and the variation of moment can be canceled out by variation of radii,the approximate constant output force can be obtained.

为消除弹簧装置中应力随应变不断变化而产生的多余应力，在卷簧结构中，采用螺旋变径输出轮，用半径的变化抵消力矩的变化，获得近似恒定的输出力。在精度要求不高的场合，采用此方式可形成简便可靠的近似恒力的弹簧装置

To prove the validity of the universal method, spring force characteristic of a certain electromagnetic relay was calculated by the method, and the real spring force characteristic was tested with a testing equipment.

采用该方法对某型号电磁继电器的反力特性进行了计算，并以反力特性测试装置对该继电器反力特性进行了测试。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。