In oilfield, downhole derricks are the main part that bears the loads in the downhole operation hoist system.

在油田起下油井管柱的各種施工中另类亚洲欧美一区在线二区99，作業(yè)井架是主要的承力構(gòu)件9999在线观看视频免费，井架的承載性能對(duì)井下各種施工作業(yè)產(chǎn)生直接影響在线激情视频图。

Please swing the derricks outboard. We want to use the shore crane.

請(qǐng)把吊桿甩到外檔去人人干黄视频，我們要用岸吊作業(yè)。

Engineers - Give orders to tell them to move and automatically capture oil derricks or other civilian buildings.

工程師——可以讓它們移動(dòng)自動(dòng)占領(lǐng)油井或其他中立建筑国产女优视频播放。

Lofty derricks dot the landscape in an oil field.

高聳的井架點(diǎn)綴著油田的景色天天视频免费入口国产。

Three kinds of drilling derricks for drilling a well of 3200 meters are used at present, including tower shape, K shape and A shape.

對(duì)在用的3200m鉆機(jī)的塔型、A型和K型井架抗扭特性進(jìn)行了分析特级欧美淫秽视频展播，以滿足正在發(fā)展的頂驅(qū)鉆機(jī)的需要欧美日韩另类日韩另类在线。

Tech goodies include oil derricks, observation post, airport, etc. Lots of water for naval combat.

技術(shù)好康包括石油井架，觀察哨亚洲国产精品成熟老女人亚洲国产精品，機(jī)場等大量水資源的海軍作戰(zhàn)国产一区二区三区美女。

Standard Derricks - Four sided structures that must be assembled and disassembled when transporting.

標(biāo)準(zhǔn)井架：搬運(yùn)時(shí)必須拆卸和組裝的四方形結(jié)構(gòu)。

What is maximum outreach of vessel's cranes or derricks outboard of the vessel's side?

船舶吊車能夠伸出舷側(cè)的最大距離欧美ⅩXXA片免费看？

The welding procedure of oil derricks has finalized the design basically in foreign countries, but in China, it is still incomplete.

國外對(duì)井架材料的焊接工藝已基本定型午夜狼友啪啪视频，國內(nèi)則起步較晚。

All derricks lowered down and secured.

所有的吊桿已經(jīng)落下并綁牢婷婷,五月天综合。