外距;
Selection of External Coatings for Long Distance Gas Pipeline
长输天然气管道外防腐涂层选择
As someone who experiences the events and as a photographer, he is able to keep a valuable distance with the external world, he uses his camera to reflect on social and cultural issues.
作为亲历者,作为影像工作者,他能够与外在景观形成一个有效距离,以影像的方式思考社会文化问题。
METHODS: The vascular external diameter and distance were measured with sliding caliper and ruler with radial styloid process as the marker.
方法:以桡骨茎突为观测标志点,采用游标卡尺、直尺测量血管外径、距离。
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