关于包括放血和柳叶刀程序在内的最佳注射实践政策指南和准则已可供使用。

Policy guidance and guidelines on best practices are available for all injections including phlebotomy and lancet procedures.

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放血需要一把锋利的去皮刀或剔骨刀。

A sharp skinning or boning knife is appropriate for this part of the operation.

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