查询词典 casing knife

According to the elastic-plastic theory, the calculation method of tangential stress , radial stress of expansion casing both in elastic deformation area and in plastic deformation area is deduced and the minimum critical load between expansion core and casing was determined.

根据弹塑性的理论，推导了膨胀套管在弹性变形区和塑性变形区的周向应力和径向应力计算模型，确定了膨胀套管膨胀时在膨胀芯头与套管之间所需的最小接触载荷。

Research results indicate that casing bend not only makes effective cross section decrease but also leads to casing snapping owing to larger local tensile stress.

结果表明：套管弯曲不仅使有效横截面降低而且由于局部拉应力过大造成套管拉断。

Based on theoretical study and test, by using finite element numerical method, the force and deformation of casing with cement sheath under nonuniform load is analyzed, and the effect of two sensentive parameters, the nonuniform load ratio and ellipticity, on the failure of casing is discussed.

在已有的理论研究与试验工作的基础上，采用有限元数值方法，分析计算了受非均匀地应力作用下套管-水泥环结构的受力与变形，讨论了两个敏感参数——非均匀载荷比和套管椭圆度对套管失效的影响问题。

Applying the casing tube of immersion heater made of this alloy to the hot-dip galvanizing industry, the examination of the industry show the casing tubes usually rupture after running about 50 days.

将该材料制成的热镀锌内加热器外套管直接应用于热镀锌的内加热设备上进行工业试验，元件在工作50天左右时出现意外断裂。

The conventional principle of prestress design of casing is huke law.That is the axial thermal stress under the minimal permissible on the basis of taking into account of three directions of thermal stress of the casing string during steam injection synthetically.

传统热采井套管预应力设计的基本原则是根据虎克定律，将施加于套管的预应力与套管升温后的轴向热应力叠加，使其控制在相应温度下套管许用的最小屈服极限以下。

The results show that, with the expansion cone angle remaining unchanged, the sizing length of expansion cone does not have much effect on the residual stress of casing after expansion, but it has much effect on the expansion force required by tube expansion. The expansion cone angle has no effect on the maximum residual stress of casing, but it has remarkable effect on expansion force. When the radial component force of expansion force is greater than the material's tensile strength, the damage to the material will arise.

研究结果表明，在膨胀锥锥角保持不变的情况下，膨胀锥定径长对膨胀后套管的残余应力没有太大影响，但对套管膨胀所需要的膨胀力有较大影响；膨胀锥锥角对套管最大残余应力没有影响，但对膨胀力的影响十分明显，当膨胀力的径向分力大于材料的抗拉强度时，材料将发生破坏。

Generally, this new technique has three steps. First, mill the necked-in casing with the efficient milling cutter head; and then salvage and back-off the buried pipe by a suitable fishing tool based on fish tip status; at last, orderly use a efficient taper pups and taper to extend and dredge the casing refitment section.

该技术首先利用高效高效铣削式套铣头对缩径套管进行套铣，然后根据鱼顶情况选择合适的打捞工具打捞、倒扣出被埋管柱，最后将高效铣锥短节和铣锥对修套井段进行扩铣通径。

Doors of engine casing and stair casing on main deck are of fire doors with self-closing device.

主甲板机舱棚围壁和梯道环围等处安装的门为带闭门器的防火门。

The Holstein spar includes 15 vertical dry tree risers comprising 12 dual casing production risers and 3 dual casing water injection risers.

Holstein 圆柱式平台包括 15 根垂直干式立管，其中 12 根为双套管生产立管， 3 根为双套管注水立管。

They may be working piece of another advantage of the casing, is used in when you need to quickly shoot can be as early as the chip-chests, completed shooting the film, when finished in a roll of casing, the photographer can detach a movie-chests, and immediately put on a new cartridges and shooting miss the crucial moment, in case of shooting Assistant, the surprint rediscussion of the film took out a volume of the new film, this procedure can be repeated; in addition, most of the 120 SLR computers may also have a different format, such as on-chip Bronica SQ-A, he will have 6-by-6, 6 × 4." and " 5,135 quanjing 135a standards of film cartridges.

随时可不不装不不装片匣的另一个弊端，是用在需给飞快不断拍摄时可预早在众个片匣不不装妥胶卷，当拍摄完片匣洋的一卷时，拍照师可以不不装下片匣不独立即不不装上另一片匣，减众在拍摄洋错失重给工夫的可能性，如有拍摄帮手的话，则可把已曝平的胶卷取不入再换上一卷陈胶卷，这样的历程可以屡屡举行；此外，不小局部120独镜反平机也有差别片幅的片匣，如Bronica SQ-A，便有6×6，6×4.5，135"全景"及135尺量量的片匣。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。