压下

Based on PVT and sand packed tube, the high pressure characteristics such as viscosity, expansion coefficient and minimum miscibility pressure were measured for mixture of crude oil and carbon dioxide, and the oil and gas production during multi contact experiments under constant and declined pressure was investigated, Lastly, the production performance of sand packed tube similar to low permeable reservoir.

通过PVT筒和填砂管气液平衡等模拟实验，测定原油与CO2体系的黏度、膨胀因数和最小混相压力等高压物性参数，研究了恒压和降压下5次CO2接触过程中原油和气体的产量变化，并对比研究模拟特低渗填砂管与PVT筒CO2吞吐实验的开采动态。

Saturation vapour pressure; saturated water vapour pressure

一定的温度和气压下，湿空气达到饱和时的水汽压。

Background: Sclenus anticus syndrome is a disease caused by scalene anterior muscle edema, proliferation and spasm, lifted the first rib, resulted in scalenus muscle interspaces constriction, crushed the brachial plexus and subclavicalar A.V.

背景：前斜角肌综合征是指各种原因引起前斜角肌水肿、增生，痉挛并上提第一肋，导致斜角肌间隙狭窄，卡压穿行其间的臂丛神经及锁骨下动静脉而引起相应临床症状的疾患。

A scanline algorithm for area filling with pushing span -ends has good efficiency but also a shortcoming that one class of special connected fields cann′t be filled completely by this algorithm .

针对压入区段端点的区域填充扫描线算法有可能出现的漏填，分析了漏填现象产生的原因，并在不增加算法复杂度的情况下提出相应的改进办法，给出了具体的算法流程，从而实现了对任意4-连通区域的正确而快速的填充，而且该算法的运行效率比递归种子填充算法以及经典的扫描线种子填充算法有明显提高。

Fruit a schizocarp, disk-shaped, fruit axis as long as or shorter than carpels; mericarps more than 15, laterally compressed and circular with a prominent ventral notch, glabrous or pubescent, 2-celled, proximal cell 1-seeded, distal cell sterile.

果一分果，盘形，果轴等长于或短于心皮；分果爿多于15，侧面压扁和圆形的有一突出腹槽口，无毛或被短柔毛，2室，下部室具1种子，上部室不育。

Tourmaline that has spontaneous polarizability, pyroelectricity and piezoelectricity can beused in many areas, for instance, electromagnetic shield, air purification, etc, therefore, differentspecies of tourmaline, Dravite occurring in pegmatites from Hebei that are different ingranularity and Schorl from Xinjiang that are different at heattreatment temperature and undercondition are tested accurately and studied in this thesis.

电气石具有自发电极性、热释电性和压电性，可应用于多个方面，如电磁屏蔽、空气净化等，为此，本文精确测试和研究了不同种属、不同粒径以及不同温度和条件下热处理电气石粉体的Zeta电位。

Common type oil mist device in a state of fuel inlet, when plug 10 as long as the screw pine oil, the oil cup on the cavity c they pass the atmosphere, at the same time, enter the incoming compressed air will be cut-off valve spool 2 pressure in the cut-off valve seat 4 on, cut off the passage of compressed air into the c-cavity.

普通型油雾器能在进气状态下加油，这时只要拧松油塞10后，油杯上腔c便通大气，同时，输入进来的压缩空气将截止阀阀芯2压在截止阀座4上，切断压缩空气进入c腔的通道。

The acceleration and sound pressure on the surface of seafloor are obtained.

建立了点声源作用下海底地震波的时域数值计算模型，利用该模型，对二维半无限空间简单海洋模型的低频点声源海底地震波问题进行了数值模拟，得到了海底表面处的加速度和声压值。

Usually the deeper section may sink mark .

正常情况下，较厚的部分都可能存在一个收缩凹陷的现象，为了解决这种现象，就应应用到保压

Using spray to simulate the mist eliminator's actual working environment, at the condition of normal temperature and normal pressure, the relation between separation efficiency and outlet gas velocity, the relation between pressure drop and outlet gas velocity was investigated by experiment.

分离效率先随出口气速的增大而增大至临界点即最大值，然后随出口气速的增大而减小；最佳工况下的分离效率达95%以上。③压降随气速的增大而增大。

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。