The operatingerror was due to carelessness pure and simple.
操作失误纯粹归因于粗心大意。
2
Cosmetic surgery operatingerror and maintenance of nursing error and may cause surgical failures.
整容手术操作失误及保养护理失误，可能导致手术失败。
3
Fixing a cutting tool in best direction will make the operatingerror smallest. This direction can be obtained by fixing and testing the measured element only one time.