实验研究中确定了喷嘴前后压差与流量间的对应关系。
In the experimental research, the relationship between pressure difference of atomizer and mass flow rate was decided.
建立了热力膨胀阀模型，重点建立了流量与阀前后压差及制冷剂进出口干度的关系。
The model of thermal expand valve is built and the connection of flux, pressure difference between the front and behind of the valve and cryogen dryness of inlet and outlet.
文章分析了孔板的开孔率对管路最大流量、孔板前压力、孔板后压力和孔板前后压差等的影响。
The paper analyzed the influence of the orifice ratio on maximum discharge, the inlet pressure, outlet pressure, differential pressure, ect.
但释放天然气的“水力压裂”过程对环境可能产生危害的问题也是不争的事实，因此亟须对开采前后的环境进行评估。
It is true that there are questions about the harm that may be done by the "fracking" process that liberates shale gas; there is an urgent need for systematic before-and-after environmental audits.
方法：采用鼻腔内激光照射治疗仪治疗60例病人，治疗前后抽空腹静脉血测定低切粘度及红细胞压积。
Methods: 60 patients with AICVD were treated by laser irradiation therapy through nasal cavity. Viscosity at lower shear rates and hematocrit were detected before and after treatment.
在阀径计算和选型时关键在于正确选取用于计算的流量值和阀前后差压。
The key of calculation and selection of the valve is to select the correct flow value and the differential pressure value between the valve front and back for calculation.
在阀径计算和选型时关键在于正确选取用于计算的流量值和阀前后差压。
The key of calculation and selection of the valve is to select the correct now value and the differential pressure value between the valve front and back for calculation.
拔管前后的心率、舒张压、中心静脉压和肺动脉嵌压均无显著差异（P>0.05）；
There was no significant difference in HR, DBP, CVP and PAWP before and after extubation (P>0.05).
主要观察指标：右胫骨上端钻孔减压术前后骨内压测量值和骨髓血液流变学数值。
MAIN OUTCOME MEASURES: Value of intraosseous pressure and medullary blood rheology before and after drilling decompression in the proximal right tibia.
较详细地介绍了某多级压气机修改前后，利用叶型受感部测取各级转子出口总压、总温分布的试验方法和结果。
This paper details the experimental methods and results using the airfoil sensors to measure total pressure and total temperature distributions behind the rotors in a multistage axial-flow compressor.
结果对照组及等渗盐水浸泡组致伤前后血浆电解质水平及渗透压无明显变化；
Results No significant changes of plasma electrolytes and osmotic pressure were found in control group and isotonic saline immersion group.
方法：建立后肢动脉闭塞犬模型，观测负压前后患肢皮肤微循环及踝动脉压的变化。
Method: Before and after LNP treatment, the skin microcirculation and the BP ankle were examined in dog models with occluded artery in hind leg.
方法对86例颅内病变引起的高颅压患者于治疗前后进行经颅多普勒超声(TCD)检测，同时检测患者脑压及血压。
Methods Before and after treatment, 86 patients with increased ICP caused by intracranial disease were observed with transcranial Doppler (TCD), the blood pressure were measured at the same time.
三个大干涉配合的淬火衬套压装在空心轴（镗套）上，因此，主轴能在衬套内前后精确移动；
Three quenched bushes are pressed on the hollow spindle (sleeve) with a big interference fit, thus the spindle can move forward and backward precisely within the bush.
标配蟹行机构，可使前后车架左右错开，保证了更好的弯道压实和压边性能。
Standard-equipped travel crab mechanism let machine frames lain away, assuring bending-road and road-edge compaction.
清管球的运动速度取决于气液混合速度和在管道中的位置，而清管球前后的压差也和气液混合速度以及在管道中的位置有关。
The moving velocity and pressure drop of the pig depend on the homogeneous mixture and the locations of the pig in the pipeline.
基于对称分量法，对电能表中性点虚接后的电压互感器二次压降进行了分析，得出了正确接线前后的计量误差变化量。
The on-site test results indicate that energy meter's neutral point virtual connection has a great effect on PT secondary voltage drop.
结果对照组和等渗盐水浸泡组致伤前后动脉血气、血浆渗透压及TNF变化不明显；
Results No significant changes of blood-gas, plasma osmotic pressure and TNF activity were found between the control group and the isotonic saline immersion group.
电路采用对插件前后分布，灯架、风窗、仪表板、后灯架用透明有机玻璃压模成整体美观逼真。
The circuit of the plugin, light support, distribution and the wind window, instrument panel, organic glass chandelier after with transparent press mould into the whole beautiful vivid.
方法：对86例颅内病变引起的高颅压病人治疗前后进行体感诱发电位检测，同时测定患者脑压及血压。
Methods: SEP was determined in 86 patients with increased ICP caused by intracranial disease before and after treatment. The intracranial pressure and blood pressure were measured at the same time.
治疗前后的血浆NPY浓度与舒张压或收缩压均无直线相关性。
There was no correlation either before or after treatment between SBP, DBP, and plasma NPY concentration.
结果亚低温治疗前后颅内压差异有显著意义（P<0.05）；
Results In comparison with control group, the intracranial pressure of mild hypothermia therapy has significant difference(P<0.05);
②施工方人员不了解引压管卡套的结构原理，将前后卡套的顺序装反或是将前后卡套的各自方向装反；
The second is that the constructors are not so familiar with the structures and sealing principles as to make mistakes with the setting direction of the ferrules.
压前后和压边的橡胶模经特殊设计，适用于各种鞋子及后跟的形状不必调整。
The rubber mould for pressing the front, back and side is designed specially, and available for all kinds of shoes.
本机一次可压合大底之包边，采用十字式不同时压前后及内外侧方向，使粘合完完美。
TYL-335Cross beading machine The machine can press wrapping of undersole, adopt cross from to press fore and after, inside and outside direction at the same time to make adhesion perfect.
本机一次可压合大底之包边，采用十字式不同时压前后及内外侧方向，使粘合完完美。
TYL-335Cross beading machine The machine can press wrapping of undersole, adopt cross from to press fore and after, inside and outside direction at the same time to make adhesion perfect.
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