annular space

The annular space could restrain the vibration of the flow.

环空间距对振荡流有抑制作用。

The calculation formula of equivalent conductivity factor in free convection on annular space is determined.

通过试验确定了双重保温管道环行空间自然对流换热在低Cr.Pr数下当量导热系数的计算公式。

The annular space is evacuated and contains multiplayer insulation.

环形空隙被抽空排气,装有多层隔热材料.

To meet the requirements of well cementing for s mall borehole and small annular space, the composite plastic fluid loss additive PT-2 was studied.

为适合小井眼、小间隙井的固井要求，研究了复合塑性降滤失剂PT&2体系。

Study on flow rate measuring method for helical attenuation flow of small size annular space

小尺寸环空螺旋衰减流测速方法探讨

The calculation and experiment results show that the maximum lifting pressure performance decreases with the increase in throat diameter of channel of variable section, water flux of low pressure and pressure ratio of steam nozzle, and has its minimum value with water nozzle annular space.

计算及研究表明：极限升压能力随变截面混合腔喉部直径、被升压的低压水流量和蒸汽喷嘴压比增加而降低，随环形水喷嘴间隙的变化出现了最小值；

All tanks are powder and vacuum insulated in the annular space.

所有罐都有真空环形隔热层.

The turbulence properties of annular space a cyclone were investigated by using the Laser Doppler Velocimetry.

采用激光多普勒测速系统测试了蜗壳式旋风分离器内的流场,分析了环形空间内的湍流特性.

the annular space between the outer tube and inner tube is evacuated to virtually eliminate heat loss by conduction and convection.

而介于外管与内管的真空环状部分是用来减少热散失的。

In half-space the investigation of dynamic characteristic of axisymmetric transversely isotropic circular and annular plate finished.

研究了空间轴对称横观各向同性圆板和圆环的动力特性.

a totally new microwave assisted extractor apparatus was designed. lda ( laser doppler anemometer) method is used to measure settling velocity and rotary velocity of the fluid in the extractor and the settling velocity and rotary velocity of different layers in annular space are obtained.

介绍了用激光多普勒速度测量（LDA）的方法测定微波萃取器内流体的沉降速度和旋转速度，得到沉降速度和旋转速度在内、外环隙不同层数间的分布，研究了流量对湍流强度的影响；

Some mechanical recovery wells in Chengdao Oilfield produce oil in tubing -- casing annular space.

胜利 埕 岛油田部分机械采油井存在油套环空出油现象.

Applying air pressure to the annular space between the sleeve and the body actuates the valve.

在套管与阀体之间的环形空间内施加气压来驱动阀门.