目的：评价负压吸脂术的临床价值。
目的：术中出血是负压吸宫流产的主要并发症之一。
Objective: Blood loss during operation is one of the main complications of artificial abortion with suction evacuation.
在排气口被转移落后利用负压吸造成的优势，内置的破坏者。
The exhaust vents were moved backward to take advantage of the negative pressure suction caused by the built in spoiler.
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