操作方便简单，工作稳定、安全、可靠。
为方便操作，配置了有刻度的夹线按钮，压脚上装了为安全专设的挡指架。
A graduated button on the thread clamp and a finger guard on the presser foot to make operation easy.
结论肝穿活检使肝脏疾病得到明确诊断，操作方便安全，患者痛苦小、易接受，值得推广。
Conclusion liver fine needle aspiration biopsy can ascertain diagnosis of liver diseases, which is convenient, safe, little pain, easily accepted and be worth popularizing.
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