韧皮纤维

phloem fibre的用法和样例：

例句

Only a small quantity of phloem fibers were distributed in the secondary phloem, and the phloem ray was unconspicuous.次生韧皮中分布有少量韧皮纤维，韧皮射线不明显。
Proactively support R &D for new type fibres such as mulberry fibre and key technology research for ramie fibre and promote industrialization of new feature silk and hemp fibre.积极支持桑皮纤维等新型纤维研发和苎麻纤维关键技术攻关，促进丝麻新型特色纤维等产业化发展。

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