Ultrasonically guided fine needle aspiration biopsy .

超声导向细针抽吸活检。

The slides are first cleaned ultrasonically several times in alternate baths of trichlorethylene and acetone , and are then scrubbed with a mildly abrasive detergent .

首先，把载片轮流放在三氯乙烯和丙酮溶液池中，用超声清洗若干次，然后用一种中极的研磨去垢剂擦洗。