The thesis studies mainly the drive and control technique of aeronautic linear DC step motor ( LDCSM) used in emergency discharging oil valve on airplane.

The old universal hydraulic testing machine of our company is running by the method of manual adjusting inlet and outlet oil valve and it has many defects such as testing method behindhand, intensity labour and imprecision results.

而我公司旧液压万能试验机以手动调整进、回油阀的方式运行，有试验手段落后，劳动量大和测试结果不准确等多项缺点。

Design of Oil Return Valve Based On SolidWorks

基于SolidWorks平台的回油阀设计

Efficiency Analysis of High Pressure Radial Piston Pump with One Oil Distributing Valve

单配油阀高压径向柱塞泵容积效率分析

Analysis of grinding cracks of oil pump valve of diesel engine

柴油机油泵阀磨削裂纹分析

Modeling and simulation on hydraulic system of tanker cargo oil valve

油船货油阀液压系统的建模与数值仿真

Control and faults analysis on oil pressure proportional valve of hydraulic press

调速器中间油压油（控制油）水压机油压比例阀的控制及故障分析

Hoist cylinder oil relief valve

起重机油缸油压安全阀

Oil valve stem, protective cap and valve-stem seal.

用机油润滑气门杆、保护帽和气门杆密封件。

After it reaches its maturity, the whole volume of the oil cell is filled with the large vacuole, which becomes the oil sac subsequently.

当油细胞发育成熟后，细胞质及核开始解体，整个油细胞的腔由大液泡充满，成为油囊。

When oily net, grease cup dirty, can use neuter and clean vacuole 20 minutes, reoccupy clear water is strong clean can.

当油网、油杯脏了，可用中性清洁液泡20分钟，再用清水冲净即可。

It is verified that ph ase separation of trace amount of water in the organic solvent is the most possible course of vacuole formation.

实验证明，气泡主要是由于有机溶剂中微量水的微相分离造成的。

Effect of Vacuole Formation and Endothelial Damage of Microvessels on Microcirculation after Ischemia Reperfusion in Rats

微血管内皮大空泡形成对微循环的影响

They distributed as tiny spots, 30~ 60 minutes after reperfusion, we observed the vacuole formation in endothelial cells of artery and thrombosis could be seen at the injurious area.

再灌注（30～60）min，可观察到小动脉和细动脉内皮形成的空泡和血栓形成。

Meanwhile, necrosis increasing, cytoplasm vacuole increasing, formation of nucleus fragments were observed both in A549/ T and A549 cells by optical microscope.

光镜观察结果发现，A549/T细胞及其亲代细胞的胞质内空泡均明显增多，出现细胞核固缩，或碎裂形成大小不等的核碎片，最后可见细胞死亡后的残骸。

Retrogressive changes of the glomerular cells in varying degrees such as mitochondrial swelling, dilatation of ER, vacuole formation, etc.

二是血管球细胞呈现不同程度的退行性变，如线粒体肿胀、内质网扩张以及空泡形成等。

The process of pollen abortion begins with vacuole formation and gradual enlargement in the tetrad.

花粉败育的过程从四分体开始，细胞质内液泡逐渐增大，接着细胞器解体，细胞核解体。

After microspore divi-sion and the big vacuole decomposition, many calcium granules accumulated again on the mem-brane of the vacuoles ( Plate III-1, 2), displaying calcium regulates vacuole formation and decom-position during pollen development.

小孢子分裂后，大液泡消失过程中又伴随着许多钙颗粒附在小液泡膜上，显示出Ca2+与花粉中液泡的形成和分解有关。

A botulinum neurotoxin blocked the exocytosis completely but not the vacuole formation. Cytochalasin D, an actin filament modifier, did not affect the formation of vacuoles but prolonged its time course.

肉毒杆菌神经毒素可以阻断分泌的过程但是并不能阻断空泡的形成，细胞松弛素D不能阻断空泡的形成，但是可以延长空泡的持续时间。

The HeLa cells exposed to Ag-NPs-Gel also showed the accumulation of Ag-NPs, vacuole and micronuclei formation in the cells.

体外细胞试验同样显示了纳米银凝胶暴露后，纳米银在细胞内的蓄积、细胞内大量空泡及微核形成。

Vacuole formation and endothelial damage in microvessels after ischemia reperfusion

缺血再灌后血管内皮空泡的形成与内皮的损伤