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[求助] 化学类术语表述

High-magnification SEM images show that the rods that compose these tubular structures are highly ordered, with the gold ends on the exterior of the structure and the polymerends all pointing toward the interior of the tubes. Rods with a 3:2 gold/polymer ratio also yield tubular structures but with ~ 29 μm diameters.请问这句话后半句  the polymerends all pointing ,中all 和pointing动名词可以这样表述吗,是否太口语化。
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