The wear of such systems can be considerable when high amperages have to be transferred and crane or trolleys are moving at high speed.

這種系統(tǒng)的磨損在必需傳送大安培數(shù)電流，以及起重機或臺車以高速運動時可加以考慮。

According to the installing facts of the single tower in cable-stayed bridge without Backstays in our country, some specific cases for analyzing and probing the rationality of the way of rigid stent with large-tonnage automotive by crane installation variable cross-section with some experience in the construction was explored.

針對目前我國單塔無背索雙索面斜拉橋的施工現(xiàn)狀，結(jié)合在施工中的經(jīng)驗和體會在线亚洲欧美va天堂在线，并通過具體的案例，對采用剛性支架配合大噸位汽車吊安裝變截面箱型鋼索塔施工方法的合理性進行了分析和探索99伦乱视频。

Bottom-slewing crane with luffing jib and towel' with backstays,- Bottom slewmg saddle jih cranes with out backstays, Bottom-slewing cranes with luffing jib

與俯仰運動三角帆的底部旋轉(zhuǎn)與后牽索的起重機和towel999国产精品永久，-與后牽索的底下slewmg馬鞍jih起重機，與俯仰運動三角帆的底部旋轉(zhuǎn)起重機

The factory was the first in 1988, the Ministry of Construction of the tower crane and blenders "production license."

本廠于一九八八年首批獲得建設(shè)部塔機和攪拌機的&生產(chǎn)許可證&激情五月丁香婷婷。

This dessertation dedicated a complete study of Chinese crane phylogenetics based on cell, protein and DNA levels combined with cladistic and numerical analysis. The main research work is introduced as following aspects.

本文在細胞欧美精品公开视频、蛋白質(zhì)、DNA等不同層次h片在线观看视频免费播放，并結(jié)合支序分析和數(shù)值分析等方法對中國鶴類的系統(tǒng)發(fā)育關(guān)系進行了全面的探索性研究榴莲视频ios网址链接。

LD model single beam motor crane is widely used in plants,warehouses,material stocks to lift goods.It is prohibited to use the equipment in the combustible,explosive or corrosives environment.

LD型電動單梁起重機廣泛用于工廠、倉庫97人妻a、料場等不同場合吊運貨物xxxx激情，禁止在易燃、易爆腐蝕性介質(zhì)環(huán)境中使用国产亚洲黄色视频。

A Soyuz rocket launched Sept. 14, 2001 from Baikonur Cosmodrome, Kazakhstan with the new Pirs Docking Compartment and a crane called the Strela Boom.

開始來自 Baikonur 人造宇宙站發(fā)射基地的 2001 年九月 14 日的一個 Soyuz 火箭国产无遮挡又黄又爽不卡，哈薩克用新的 Pirs 連接區(qū)劃和一個起重機呼叫 Strela 檔木板。

Crane's-bill,cranesbill

n免费视频,国产精品。 吊車工国产原创精品无遮挡v视觉影院，起重機手，天車工

According to the characters of traveling crane in the high pollution workshops,we have developed a novel applicable machine with mobile replacing depurating technique for solving the labour protection problems on special jobs.

文章針對高污染車間行車駕駛室的特征亚洲成l人在线观看线路，研究了一套適用的移動置換潔凈技術(shù)裝置久999，為解決特殊崗位的勞動保護工作探討出一種新技術(shù)方法。

According to the characters of traveling crane in the high pollution workshops, we have developed a novel applicable machine with mobile replacing depurating technique for solving the labour protection problems on special jobs.

摘要文章針對高污染車間行車駕駛室的特征色妞一二三区在线观看，研究了一套適用的移動置換潔凈技術(shù)裝置，為解決特殊崗位的勞動保護工作探討出一種新技術(shù)方法欧美A日韩A。