| 1. | Formal specification and verification of air - ticket reservation systems using pvs
的飞机订票系统的形式化描述与验证
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| 2. | Pvs ported vacuum switch
真空孔开关
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| 3. | Debate - 1 : electrical isolation of the pvs should be the endpoint of ablation for af ?
20热点问题辩论：肺静脉电隔离是房颤导管消融治疗的必要终点？
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| 4. | Conclusion one of possible pathogenetic causes of pvs in cats is the decrease of dopamine
结论多巴胺的减少可能是形成持续性植物状态猫的重要因素之一。
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| 5. | Results the level of dopamine in cerebrospinal fluid in the cats with pvs was obviously lower than that of control groups
结果持续性植物状态猫的脑脊液中多巴胺含量显著降低。
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| 6. | Conclusion : higher clinical stages were accompanied with greater number , wider diameter or faster blood flow of pvs
结论：随小腿扩张交通静脉数目增加、内径增宽、血流速度升高，临床表现加重。
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| 7. | Abstract objective to study the changes of dopamine in cerebrospinal fluid in the cats with persistent vegetative state ( pvs )
中英文摘要摘要目的探讨持续性植物状态猫脑脊液中多巴胺的变化及其意义。
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| 8. | Objective : to evaluate the relationship between the ultrasonic features of perforating veins ( pvs ) and the clinical stages in patients with venous insufficiency of lower extremities
摘要目的：探讨下肢静脉功能不全患者小腿交通静脉超声改变与临床表现的关系。
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| 9. | Methods to measure the levels of dopamine in cerebrospinal fluid by high performance liquid chromatography with electrical chemical detect ( hplc - ecd ) in the cats with pvs and compare the values with the controls
方法用高效液相色谱测定持续性植物状态猫脑脊液中多巴胺含量，并与正常对照组对比。
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| 10. | Where approved by code , watts recommends a custom engineered watts pvs series water supply valve station consisting of two or more 719 series valves piped in parallel to serve a larger supply main
在符合有关规定的地方，美国瓦茨建议常规设计美国瓦茨pvs系列水供应阀门站，这种总成由两个以上的719系列阀门通过管道并联而成，用于更大的供应主管道。
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