而人工流产是将负压管放进宫腔内，利用负压吸去妊娠产物。
And abortion is the negative pressure pipe in the womb, the use of negative pressure suction to pregnancy product.
本实用新型是提供一种能产生较大负压从而大大提高疏通能力的手动疏管器。
The utility model provides a manual pipe dredger which can produce larger negative pressure, so as to improve dredging capability.
利用通用的微电极夹持器在其抽吸负压的侧管上方钻一斜孔直通夹持器中央管腔。
An oblique hole through the glass pipette holder above the lateral hole for cell seal suction is drilled, through which a microcatheter o.
对采用负压定径技术生产大管径聚乙烯管的挤出成型工艺及其主要设备进行了研究。
The extrusion molding process and main equipment for producing PE large diameter pipe with negative pressure sizing technology are studied.
选用三种颗料状物料，在四种不同倾斜度的斜管中测定了不同负压差和固体流率条件下的气体流率。
The experimental data of gas flow rate in the bed with four slant angles and three kinds of particle materials are obtained.
方法乳癌改良根治术后单管负压引流组与双管负压引流组对比。
Methods the group of single tract drainage was compared with the group of twin tract drainage after amend radical operation of mastocarcinoma.
排水立管的上部和下部都存在正压和负压。
Positive and negative pressure existed in the upper and lower drainage pipes.
方法将66例乳腺癌患者根治术后采用多管负压引流，并与66例乳腺癌根治术后单管引流患者进行对比性研究。
Methods 66 cases used multi-catheters negative pressure drainage were compared with 66 cases used mono-catheters negative pressure drainage in radical mastectomy.
简要介绍了国外最新应用的清蜡、防蜡方法，诸如油井油管注入阀清蜡、负压冲击清蜡、井下就地产热清蜡、油井直接电加热清蜡和使杆管表面亲水防蜡等。
The latest technologies in paraffin removal and control in foreign countries are briefly introduced, such as paraffin removal by oil well tubing fillup valve, negative pres…
结论乳癌改良根治术后两种负压引流的效果相同，单管负压引流适用于手术刀游离，双管负压引流适用于高频电刀游离。
Conclusion The effect was same in two mode drainage after amend radical operation of mastocarcinoma. The single tract hold true bist...
简述了真空排水系统真空罐排放的应用现状和技术差异，重点介绍了单真空罐带负压排放方案的设计要点，详述了排污泵参数的确定方法和平衡管的作用。
The text introduces the theory and operation characteristic of liquid ring vacuum pump and auxiliary equipment, It has important technology reference value to electric power industry.
简述了真空排水系统真空罐排放的应用现状和技术差异，重点介绍了单真空罐带负压排放方案的设计要点，详述了排污泵参数的确定方法和平衡管的作用。
The text introduces the theory and operation characteristic of liquid ring vacuum pump and auxiliary equipment, It has important technology reference value to electric power industry.
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