Methods: Adopt analytic approach of reviewing method, statistic the producing rate lung cancer by four different ways to draw materials including clamp check, brush check, rinse and needle aspiration.
方法:采用回顾性分析法,分别统计钳检、刷检、冲洗及针吸活检4种不同取材方法对肺癌的检出率。
Aimed at the feature that the locality of axis of the armature MMF is determined by the brush in dc motor, a new concept on clamp is proposed.
针对直流电动机中电枢磁动势的轴线位置由电刷决定的特征,提出了箝位概念,指出自控变频乃是箝位效应的直接后果。
Aimed at the feature that the locality of axis of the armature MMF is determined by the brush in dc motor, a new concept on clamp is proposed.
直流电动机中电枢磁动势的轴线位置是由电刷位置决定的,电刷具有箝位的功能。
Aimed at the feature that the locality of axis of the armature MMF is determined by the brush in dc motor, a new concept on clamp is proposed.
直流电动机中电枢磁动势的轴线位置是由电刷位置决定的,电刷具有箝位的功能。
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