“field block anesthesia”的概念、定义、翻译、参考文献-科学参考

单词	field block anesthesia
释义	field block anesthesia Encyclopedia 医学局部麻醉释 field block anesthesia区域阻滞麻醉在手术区域的四周和底部注射局麻药，以阻滞支配手术区域的神经干及神经末梢，从而阻断痛觉的传导途径，使手术区域无痛的方法。
随便看	nonnegative definite nonnegative definite kernel nonnegative definite matrix nonnegative definiteness nonnegative definite quadratic estimate non-negative definite quadratic estimator nonnegative divisor nonnegative element nonnegative function nonnegative integer nonnegative integral kernel nonnegative manifold nonnegative matrix non-negative matrix factorization nonnegative measure nonnegative number nonnegative operator nonnegative orthant nonnegative partial sum nonnegative quadratic form nonnegative semi-definite matrix nonnegative solution nonnegative splitting nonnegativity nonnegativity condition

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