方法：回顾分析1983例经腹腔镜胆囊切除术难度分级标准（laparoscopic cholecystectomy difficulty classification，LCDC）评定的LC手术。
基于4个网页-相关网页
方法：回顾分析1983例经腹腔镜胆囊切除术难度分级标准（laparoscopic cholecystectomy difficulty classification，LCDC）评定的LC手术。
基于1个网页-相关网页
体力劳动强度分级标准 Classification of physical workload
言语可懂度分级标准 speech intelligibility rating
强度分级标准 Strength grading criteria
和言语可懂度分级标准 speech intelligibility rating
语可懂度分级标准 SI ; s
手术难易度分级标准 LCDC
建立了施工平整度层间传递模型，并根据平整度分级标准，提出了每层的平整度控制标准，最后建议了沥青路面平整度控制措施。
According to the smoothness grade standard, the smoothness control standard of each layer is presented, and the asphalt pavement smoothness control measure is suggested finally.
策划与构思卫生监督量化分级管理风险度与水平控制、标准细化及实施效果评价模式等问题。
Planning and conceiving the hazard degree of quantified and classified hygiene surveillance, control of standard, standardization, and assessment mode of implementing effect.
由此建立的量化指标体系包括了叶片褪绿程度的分级标准和叶片为害度的计算两个部分。
The resistance index system was composed of scoring scale of chlorosis on a leaf of maize and the ACL ca.
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