压下

Retrieved the casing loads, making use of casing inwall displacements, which provided the research basis for casing deformation under non-uniform loading and prevention measures for casing collapse.

通过对套管内壁部分位移的优化反分析求出套管所受的内压及外载大小，为研究套管在非均匀载荷作用下的挤毁问题和套管损坏防治措施提供了依据。

It is a method for the estimate of the surface wind using the observed wind in the nearest standard isobaric surface above the top of the planetary boundary layer under the actual topographic conditions.

文中提出了一种在实际地形条件下，利用行星边界层顶上方最邻近标准等压面的实测风推算地面风的方法——修正的Taylor螺线法。

Through analysis of potential vorticity in isobaric surface field, in high-troposphere a positive potential vorticity disturbance before rainstorm generation;positive potential vorticity disturbance in high-troposphere downward, form one vertical disturbance column, now corresponding precipitation develop stage;When near ground arises negative potential vorticity disturbance, precipitation also weaken.

通过对等压面的位涡分析，发现在暴雨发生发展时，在对流层高层有正位涡向下扰动，在暴雨的发展鼎盛阶段，从对流层中高层到地面形成一个垂直扰动柱；位涡柱对地面气旋的发展有较好的指示性，位涡柱形成时刻前后降水达到最强；当近地面出现负的位涡扰动时，降水随之减弱。

This paper describes the experimental results of the Tangshan earthquake which are in reasonable agreement with the seismological and geological data of the Tangshan districtt 1,Isopach and isochromatic fringe patterns of the Tangshen structures show three areas of strees c...

唐山等和线和等差线条纹图显示出三个应力集区，与唐山的主震和余震位置一致。2。唐山主应力轨迹线方向为东北方向。这个方向与华北现代构造应力场主压应力方向一致。激光全息光弹实验方法可以用来探讨不同的构造形态在不同边界条件下的应力分布和变化，从而为较大地震预报提供线索。

Isopiestic measurements have been carried out at 298.15K for the quaternary aqueous solution H2O+KCl+NaCl+NH4Cl saturated with potassium chloride and its ternary sub-systems H2O+KCl+NaCl and H2O+KCl+NH4Cl.

在298.15K条件下采用等压实验方法对KCl饱和的四元水溶液体系H2O+KCl+NaCl+NH4Cl及其两个三元亚系H2O+KCl+NaCl和H2O+KCl+NH4Cl进行了研究。

A systematical method, which can be applied to calculate the mechanical exergy including a phase change process, was put forward, based on the theoretical analysis of the phase change and the capability of doing work in an isothermal process.

为此，通过对定温变压过程下物态变化及其做功能力的理论分析，提出了适用于含相变过程的完整的机械火用计算方法。

How? If you stand under a doorway and the door jamb falls forward or backward you will be crushed by the ceiling above..

如果你站在门口下，门框侧墙不论是向前或向后倒塌，你将会被在上面的天花板压碎…如果门框侧墙倒向两边，你将会在门口被切成一半，不管何种方式，就是死路一条

Methods Sixty-four acute brain edema model of rabbits by Orthogonal Design were established and measured adenylate with HPLC on different temperature, therapeutic time window and persistence of mild hypothermia. Two hundred and eight acute traumatic brain injury patients were also treated with mild hypothermia in the same way. The cases scored with Jennet grade and Intracranial pressure.

制作兔创伤性脑水肿模型，采用正交设计法，测量了64例在不同的低温温度、治疗时间窗和低温持续时间等条件下脑组织腺苷酸含量；并对208例重型脑损伤病例实施低温治疗，按Jennet分级标准和颅内压计分。

Following the puncture of zona pellucida with two holes by injection pipette that contained donor nuclei or cells, the injection pipette was pulled back to the perivitelline space while the negative pressure was increased in the holding pipette until the polar body and karyoplasm were wiped off completely. Then a reconstructed embryo was completed by the direct injection of the donor nucleus or cell without pulling out the injection pipette.

首先以预先吸有细胞核或细胞的注射针在固定于持卵针上的卵母细胞透明带上穿刺两个孔，然后一边缓慢地将注射针回拔至卵周隙中，一边逐渐增加持卵针中的负压，直至极体与目标核质被完整吸入持卵针中而完成去核，最后在不拔出注射针的情况下直接注射细胞核或完整细胞进而完成重构胚的构建。

With a rational dynamic model established on basis of the structural features and constraining conditions of the annular plate installation and through Duhamel＇s integral solution of Lagrange motion equation, the impact load and dynamic response of surface casing cementing unit induced from the cementing operation have been analyzed.

根据表层固井环板装置的结构特点和约束条件，建立了合理的力学模型，应用杜哈默积分求解拉格朗日运动方程的方法，对固并碰压状态下承受冲击载荷及其动力响应问题进行了分析。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。