This paper is based upon the scientific research on the tyre contact stress of 5×33M rotary kiln, with two-pass grate-rotary kiln as the subject ,and has an analysis and research on the contact stress of tyre and roller.

本論文基于 F 5M×33M回轉(zhuǎn)窯滾圈接觸應(yīng)力研究科研項目成年人在线，以2檔鏈篦機(jī)-回轉(zhuǎn)窯為研究對象欧美性网，對滾圈與托輪的接觸應(yīng)力進(jìn)行了分析與研究红豆视频直播免费观看在线。

This paper is based upon the scientific research on the tyre contact stress of 5×33M rotary kiln, with two-pass grate-rotary kiln as the subject ,and had an analysis and research on the contact stress of tyre and roller.

本論文基于5M×33M回轉(zhuǎn)窯滾圈接觸應(yīng)力研究科研項目，以2檔鏈篦機(jī)-回轉(zhuǎn)窯為研究對象欧美性爱视频在线观看视频，對滾圈與托輪的接觸應(yīng)力進(jìn)行了分析與研究国产黄色视频免费看日韩黄色视频免费看。

In this paper,taking the rotary furnace of Tianjin steel tube company for the research object, an optimal mathematical model of the company's rotary furnace for continuing heating up semi-finished steel tube has been set up and the numerical analysis is made and a computer simulating interface has been developed .

以天津鋼管公司的環(huán)形加熱爐為研究對象，建立了環(huán)形加熱爐管坯連續(xù)加熱過程數(shù)學(xué)模型国产毛片黄片，并進(jìn)行了數(shù)值解析www.高清色色视频.cnm。同時開發(fā)了計算機(jī)仿真界面，對管坯在爐內(nèi)的加熱情況進(jìn)行了數(shù)值模擬久青草视频精品线在线观看，利用現(xiàn)場實驗數(shù)據(jù)對所建立的數(shù)學(xué)模型進(jìn)行了驗證717午夜理论片在线观看影片。

The experiment system is consisted of transferring machine and rotary machine, to simulate the motion of transferring machine and rotary machine.

回轉(zhuǎn)塔式起重機(jī)實驗臺由回轉(zhuǎn)機(jī)構(gòu)和變幅機(jī)構(gòu)組成，模擬回轉(zhuǎn)塔式起重機(jī)的變幅運動和回轉(zhuǎn)運動三级视频中文字幕。

The currency-used equations for calculating the life of the main bearings on rotary table and swivel take no consideration of all the affecting elements. The author offers thereby new equations that take an overall consideration of the load, rotary speed, lubrication, assembling, working environment, material and surface hadness.

針對現(xiàn)有文獻(xiàn)給出的轉(zhuǎn)盤和水龍頭主軸承壽命估算公式對多種影響因素考慮不充分www.在线网站你们懂得，與實際工況有一定出入的問題，推導(dǎo)出全面考慮載荷可以看的黄色性爱视频网站、速度国产精品美女久久9999、潤滑、裝配中文人妻一区二区三区四区、工作環(huán)境和材料及表面硬度等多種影響因素色综合网中文综合网色综合网，估算轉(zhuǎn)盤和水龍頭主軸承壽命的新公式。

Objective To evaluate clinical effect of the handling ProTaper Nickel-titanium rotary instruments in preparation of canals of posterior teeth.Methods 96teeth with pulpitis or periapical periodontitis were instrumented by handling ProTaper rotary instruments using step-down technique,and by K files using step-back technique for control.All teeth were obturated with lateral condensation methods.The efficiency of preparation was analyzed with ra-diographs before and after operation.

目的 評價手用ProTaper預(yù)備后牙根管的臨床效果方法選取患有牙髓炎和根尖周炎的后牙96例国产xxxx69，隨機(jī)分成試驗組和對照組各48例久久久久久国产精品无码超碰2020，試驗組用手用ProTaper 錐度鎳鈦旋轉(zhuǎn)器械逐步伸入法預(yù)備根管，對照組用K銼蜜桃视频午夜播放在线观看免费，逐步后退法預(yù)備根管www886ys.com，兩組均用側(cè)向加壓充填法充填根管，根據(jù)治療后的X線片日韩欧美视频一区二区三区，評價后牙根管預(yù)備效果亚洲精品人成中文毛片。

The first excavator manual has been available 130 years of history has gone through during the fight by the steam-driven rotary excavator to the internal combustion engine and electric drive rotary excavator hydraulic application integration technology of the automatic hydraulic excavator Step by step in the development process.

第一臺手動挖掘機(jī)問世至今已有130多年的歷史，期間經(jīng)歷了由蒸汽驅(qū)動斗回轉(zhuǎn)挖掘機(jī)到電力驅(qū)動和內(nèi)燃機(jī)驅(qū)動回轉(zhuǎn)挖掘機(jī)日韩欧美综合在线视频、應(yīng)用機(jī)電液一體化技術(shù)的全自動液壓挖掘機(jī)的逐步發(fā)展過程可以直接看的毛片。

The invention provides a spring seat is intended for use at opposite ends of a small coil springs disposed between a power input rotary member and a power output rotary member.

本發(fā)明構(gòu)思了一種供設(shè)置在動力輸入旋轉(zhuǎn)構(gòu)件和動力輸出旋轉(zhuǎn)構(gòu)件之間的小盤簧之兩相對端使用的彈簧座。

In another embodiment, a spring seat is provided with a first support portion and a second support portion such that the orientation of the spring seat determines a phase or orientation of the power input rotary member with respect to the power output rotary member.

還可以在彈簧座上設(shè)有一第一支承部分和一第二支承部分99久久精品国产首页免费，這樣彈簧座就決定了動力輸入構(gòu)件相對于動力輸出構(gòu)件的相位或取向在线观看v片免费视频小说。

The products has high-precision horizontal spindle surface grinders with rectangular table, high-precision horizontal spindle surface grindes with rotary table, vertical spindle surface grinders with rotary table, CNC corrugated roller profile grinder, CNC creep-feed profile grinders and floor-type guideway grinder etc.

公司的產(chǎn)品有高精度臥軸矩臺平面磨床、高精度臥軸圓臺平面磨床巨胸流奶水视频网站、立軸圓臺平面磨床国产日本一区二区在线视频、數(shù)控瓦楞輥成形磨床、數(shù)控圓弧剪刃成形磨床、數(shù)控強(qiáng)力成形磨床和導(dǎo)軌磨床等80多個品種規(guī)格的技術(shù)儲備最新麻豆精品视频，其中有填補(bǔ)國內(nèi)空白的產(chǎn)品和榮獲國家銀獎的產(chǎn)品精品国产色哟哟在线观看。