其内容包括:1、泥管吸口处泥浆的形成过程。
They include: 1. Model of the mixture forming in the cutter.
插胃管可以减轻胃扩张并降低发生误吸的危险。
A gastric tube is indicated to reduce stomach distention and decrease the risk of aspiration.
初生合点吸器沿着胚珠的维管组织分支。
The primary chalazal haustorium ramifies around the vascular tissues of the ovule.
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