phloem ray的用法和樣例：
例句
- The adventitious buds can be developed in the crossed area of both cork cambium and phloem ray inside the root.
宿根上的不定芽發生於韌皮射線與木栓形成層交叉的區域。 - Only a small quantity of phloem fibers were distributed in the secondary phloem, and the phloem ray was unconspicuous.
次生韌皮中分佈有少量韌皮纖維，韌皮射線不明顯。
