Crown Block - A series of sheaves affixed in the top of the derrick used to change the direction of pull from the drawworks to the traveling block.

天車：固定在井架頂部的一系列滑輪，用于改變來自絞車并傳到游動滑車的拉力方向。

Derrick: That's what I understand.

這我清楚。

The design method of loading control system of derrick car based on ADμC824BS was introduced in this paper, the hardware principle block diagram and software flowchart of the control system were presen- ted.

介紹了以ADμC82 4BS微控制器為核心的起重車載荷控制系統(tǒng)的設(shè)計(jì)方法色综合视频久久，給出了系統(tǒng)硬件原理圖和軟件流程圖。

The bridge type derrick big car will appear to chew track phenomenon in the movement, slight of chew a track will result in a good luck and orbit of the on the side have obvious of wear away trace, severity chew a track will result in a good luck and orbit of the on the side metals be peeling off or the round's good luck outwardly transform and even jump the track to result in graveness Human body dead and injured and equipments trouble.

橋式起重機(jī)大車在運(yùn)行中會出現(xiàn)啃軌現(xiàn)象777av视频，輕微的啃軌會造成輪緣及軌道的側(cè)面有明顯的磨損痕跡人人摸人人交，嚴(yán)重啃軌會造成輪緣和軌道的側(cè)面金屬剝落或輪緣向外變形，甚至脫軌造成重大人身傷亡和設(shè)備事故在线免费观看视频黄片。

A shrill whistle rang out as a signal, a man over at the engine pulled a lever, a chain from the derrick was lowered, and the whistle rang out again.

隨著一聲尖銳的哨響作為信號131美女作爱视频一区二区，機(jī)器后面的人拉動手柄，起重機(jī)下的鉸鏈徐徐降下92看片婬黄大片一一，然后又是一聲哨響欧美性色爱图。

The cantilever erection method with derrick crane provides a new way for design and construction of long-span suspension bridge with steel stiffening truss girder in the western area of China.

橋面吊機(jī)懸臂拼裝方案為我國西部地區(qū)大跨鋼桁加勁梁懸索橋的設(shè)計(jì)和施工提供了1種新的方法黄色av丝袜。

SWLOF DERRICK/CRANE:2X10TONS CARGO ARRANGEMENTS UNMBER OF MANIFOLDS ON EACH SIDE.......3 TYPE OF MANIFOLD.......

吊桿/克令吊的安全工作負(fù)荷：2X10噸貨物裝置每一邊的的數(shù)量黄片国产一级欧美操逼的免费观看。。久久奶水A毛片免费看。欧美69囗交视频。。3類型亚洲第二区在线视频。手机黄片亚洲。。人人摸人人操人人上。

Have all brakes and locking devices on the crane or derrick set when the occupied p ersonnel platfor m is in a stationary working position.

使用中的載人平臺處于靜止工作狀態(tài)時(shí)日韩一级视频免费观看，拉好所有制動和鎖定裝置。

Derrick crane is more flexible.

桅桿吊比較靈活黄片首页。

Suitable for vertical well drilling goisting, cage channel of vertical well drilling, port load and unload derrick ,and tower crane.

適用于開設(shè)立井提升国产偷亚洲偷欧美偷精品导航、立井罐道港口裝卸起重機(jī)、建筑用塔式起重機(jī)国产一区,二区。。