查询词典 derrick floor

Recently, with the application of finite element method in engineering mechanics, it is necessary and possible to study the welding procedure of domestic oil derrick materials, for the purpose of more appropriate procedure and to improve the welding quality and productivity of oil derrick.

近年来，随着计算机辅助设计在工程中的应用，有可能也有必要对国内井架材料的焊接工艺进行进一步的研究，制定合理的焊接工艺，提高井架焊接质量。

During the manufacture of oil derrick, such factors as welding defects, deforming and cold crack have key effect on the oil derrick quality.

在井架的制造过程中，焊接缺陷、焊接变形和焊接冷裂纹是影响井架质量的关键因素。

Those simulation analysis results can be used as scientific basis for derrick design staff to revise design and for detection staff to detect oil derrick in field.

仿真分析结果为井架设计人员修改设计方案、检测人员对在用采油井架现场检测提供科学依据。

In this paper, welding process parameters of oil derrick have been determined, and a suitable welding procedure have got by use of welding procedure qualifications. The paper pointed out the common defects in oil derrick welding, explained it, and gave preventive measures.

本课题通过焊接工艺评定，确定井架焊接的工艺参数，并指出了井架焊接中容易出现的焊接缺陷，分析了缺陷产生的原因，给出了预防措施。

According to the mechanical behaviors of in-service oil drilling derrick,the simulation model for forecasting the ultimate bearing capacity of oil drilling derrick was established on the basis of the double nonlinear theory .

针对在役石油钻机井架的力学特征，建立了基于双重非线性理论的极限承载仿真模型。

The damage of the derrick was due to the careless handling of the ship's crew in lowering the derrick, causing the topper to override the ratchet wheel and foul onto the topping winch drum shaft.

该吊杆的损坏是由于该轮船员在将吊杆放低时因操作不慎而造成千斤索越过棘轮，缠绕在千斤索绞车卷筒轴上。

Consequently, the topper was cut broken by the pawl of the ratchet wheel and the derrick fell freely and struck onto the bulwark top, resulting into serious bending of derrick and also wounding of stevedores.

接着，千斤索被棘轮爪切断，吊杆失控跌落并撞上舷墙顶部，致使吊杆严重弯曲，装卸工受伤。

Our company mainly produces and runs brand"Sheng Zhong "electric calabash,singal- clouble bridge derrick,doorlike derrick 、building bridges maching、Press-ganging maching 、port crane and aviding explosive.

本公司主要从事&盛重&牌电动葫芦，单、双梁桥、门式起重机，抓斗，架桥机，港口起重机及防爆系列起重机的制造、销售。

It used to be fashionable for millionaires to buy their own island. Now, with the risk of property literally going under, Derrick Pendle has opted to rent Teirio Island. The price hasn't been fixed yet, but however much it costs, you can't buy rain. So Derrick has invested 10,000USD on a water filter.

以往富豪流行买下无人岛，但现在怕岛屿沉没，Derrick Pendle改用租下Teirio小岛，价格还未定案，但比起花天价也不见得能买到的雨水，岛主只能再投资一万美金，添购海水淡化机。

In addition, the combined weight of the loaded pers onnel platfo rm and its rigging must not exceed 50 percent of the rated capacity of the crane or derrick for the radius and configuration of the crane or derrick.

此外，加载的载人平台与其索具的总重不能超过吊车或起重机在其工作半径和配置一定时的额定载荷的50%。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。