助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   石油平台 在 石油天然气工业 分类中 的翻译结果: 查询用时:1.218秒
图标索引 在分类学科中查询
所有学科
石油天然气工业
海洋学
环境科学与资源利用
金属学及金属工艺
国际法
船舶工业
更多类别查询

图标索引 历史查询
 

石油平台     
相关语句
没有找到相关双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  oil platform
Elevated As concentrations (50-180 ppm) were also found in a few surface samples of sand from the Gdansk Deep near oil platform D-6.
      
Grain size and infauna were strongly affected by the oil platform.
      
The rate of uptake of naphthalene was found to increase with decreasing distance from the oil platform at all fields with maximum values at stations 0.5 miles (ca 0.8 km) from the centre of oil activity.
      
RNA concentrations expressed in three different ways gave similar estimates of the growth rate for two samples of wild saithe, one from around an oil platform and the other from the west coast of Scotland.
      
open-ocean pollutant transport, deep-sea oil platform design, and the generation and propagation of tsunamis), and, consequently, the reliable and accurate numerical simulation of these "water waves" is of central importance.
      
更多          
  offshore oil platforms
galloprovincialis) and other organisms sloughed from offshore oil platforms provide a food subsidy to benthic consumers and alter underlying soft bottom habitat by creating hard substrate.
      
The distribution, abundance, and population characteristics of mobile macroinvertebrates differed among shell mounds beneath existing offshore oil platforms, shell mounds at the former sites of offshore oil platforms, and soft bottom.
      
At present, 300 offshore oil platforms are in operation as compared with only 7 in 1970.
      
Consequently, all North Slope oil field workers reside in dormitories at Deadhorse or at offshore oil platforms.
      
Marine concrete structures -longspan bridges, undersea tunnels, and offshore oil platforms -are examples of such applications.
      
更多          
  其他


This paper describes the experimentation and application of Al-Zn-In-Cd anodes. The composition of anode (Al-(2.5~4.5) Zn-(0.02~0.03) In (~0.01)Cd) is determined by laboratory and field tests, and appropriate emphirical formula for cathodic protection design calculation has been selected and checked. From actual use in the protection of offshore structures such as platform etc., it has been proved that this kind of anode has stable and reliable electrochemical properties, containing impurities of Fe<0.16%, Si<0.13%...

This paper describes the experimentation and application of Al-Zn-In-Cd anodes. The composition of anode (Al-(2.5~4.5) Zn-(0.02~0.03) In (~0.01)Cd) is determined by laboratory and field tests, and appropriate emphirical formula for cathodic protection design calculation has been selected and checked. From actual use in the protection of offshore structures such as platform etc., it has been proved that this kind of anode has stable and reliable electrochemical properties, containing impurities of Fe<0.16%, Si<0.13% and Cu<0.005%. The steel structures of offshore platforms can be well protected when properly designed and installed.

本文叙述了Al—Zn—In—Cd阳极的试验研究和应用。内容包括通过室内外试验确定阳极成分、选择并验证适宜的阴极保护设计计算经验公式和海上平台等设施的保护实践,应用结果表明该阳极具有稳定可靠的电化学性能。设计和安装得当,可使海上石油平台等钢铁结构物得到良好的保护。

This paper introduces the concept of fuzzy fatigue failure sets which reflects the fuzziness of structure and material, the structure's fuzzy fatigue damage sets caused by fuzzy, alternative load, defines the fuzzy relationship between two fuzzy sets to describe the degree of fatigue damage and its possibility distribution. A brief discussion has also been made of the application of the theory to analysing the offshore platform leg sfatigue damage.

本文首先引进了反映结构、材料特性的模糊疲劳失效集的概念,进步研究了模糊交变应力作用下所造成的结构的模糊疲劳损伤集,并定义了两个模糊集之间的一种模糊关系来刻划结构疲劳损伤的程度及其可能性分布,最后简述了该理论在海洋石油平台桩腿疲劳损伤分析中的应用。

It is necessary to establish an acceptable level for possible defects in steel structures on the basis of “fitness for purpose”. In accordance with BS 6235, code of practice for fixed offshore structures, for a given stress or strain level the COD test can be used to determine the maxi-mum tolerable flaw size using the procedure proposed in PD 6493. Besides the equations of fracture toughness, defect and applied strain, this code also recommends a tolerable defect parameter a_(max)=B/4 for a thickness of B≤50mm....

It is necessary to establish an acceptable level for possible defects in steel structures on the basis of “fitness for purpose”. In accordance with BS 6235, code of practice for fixed offshore structures, for a given stress or strain level the COD test can be used to determine the maxi-mum tolerable flaw size using the procedure proposed in PD 6493. Besides the equations of fracture toughness, defect and applied strain, this code also recommends a tolerable defect parameter a_(max)=B/4 for a thickness of B≤50mm. In this paper the allowable flaw size in welded joint specified by BS 6235-82 is examined by means of wide plate test for two steels A131 and A537, which are commonly used for offshore structures in China. Tes-ting technology is described in detail and the useful conclusions are given also, i. e., the strains corresponding to fracture are 5.57% for A131 steel and 4.17% for A537 steel respectively at -40℃. They are higher than the strain predicted by the equation for a wide plate under conditins: SCF (Kt)=10, design stress σ=0.6σ_s, and preloading stress σ_P = 0.8σ_s.

对于钢制结构来说,可能存在着各类不同的缺陷。因此应基于“合于使用”的原则确立对缺陷的验收值。本研究采用宽板拉伸试验以我国两种石油平台用钢A131和A537为例对英国BS6235所规定的最大允许焊缝缺陷参量值进行了校验。同时对校验技术给出了结论、对于A131钢和A537钢在给定的设计αmax情况下其断裂时的应变值分别为5.57%和4.17%。它们明显地高于有关方程在应力集中系数为10、设计应力为0.6倍屈服限。预载应力为0.8倍屈服应力条件下的宽板拉伸应变值1~2%。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关石油平台的内容
在知识搜索中查有关石油平台的内容
在数字搜索中查有关石油平台的内容
在概念知识元中查有关石油平台的内容
在学术趋势中查有关石油平台的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社