A pressure relief valve from the main valve, pressure relief / holding pressure pilot valve needle valve, ball valve, micro shaped filter and pressure gauge hydraulic control over the system.
进口持压泄压阀由主阀、泄压/持压导阀针阀、 、球阀、微形过滤器和压力表组成水力控制接管系统。
The observation group was treated with micro-needle at scalp hairline region; the control group was administered oral medicine.
观测组用头皮发际区微针法，对照组用口服药物疗法。
The preparation method adopts the silicon and non-silicon compounding method for preparing the hollow metal micro-needle, and the processing cost is low.
本发明采用硅与非硅复合方法制备空心金属微针，加工成本低。
Abstract: Objective to observe the clinical effect of micro-needle therapy in the treatment of refractory melasma.
[摘要]目的：观察微针疗法治疗难治性黄褐斑的临床疗效。
Conclusion: The method for treating stenosing tenovaginitis of flexor digitorum with hook needle knife has advantages of definite effects, micro invasion and safety.
结论：钩刀松解法治疗屈指肌腱狭窄性腱鞘炎疗效肯定、微创、安全。
The paper compared and analyzed the micro structure differences of the coal base needle coke products produced with the different production techniques at home and abroad.
研究了煤系针状焦原料煤沥青中间相的生成机理及成焦过程；
Conclusion Micro-needle therapy is effective, and provides a new method for the treatment of refractory melasma.
结论：微针疗法治疗难治性黄褐斑疗效确切，无明显副作用，为治疗难治性黄褐斑提供了一个新手段。
Conclusion Micro-needle therapy is effective, and provides a new method for the treatment of refractory melasma.
结论：微针疗法治疗难治性黄褐斑疗效确切，无明显副作用，为治疗难治性黄褐斑提供了一个新手段。
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