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.
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