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- Collateral or bicollateral vascular bundle, developmental pith and medullary ray are obvious. 髓部发达，髓射线明显。
- Vascular cambium possesses two distinct types of initials, ray initials forming medullary rays, and fusiform initials producing xylem and phloem elements. 维管形成层具有两种明显的分生组织，射线原始细胞形成了髓（还应包括维管射线，译者注）射线；纺锤状原始细胞形成了次生木质部和次生韧皮部。
- Ground meristem The central region of the apical meristem from which the ground tissues of pith, cortex, medullary rays, and mesophyll differentiate. 基本分生组织：位于顶端分生组织的中部，髓、皮层、髓射线以及叶肉这些基本组织均是由基本分生组织分化而成。
- The cut slices slightly across the medullary rays, accentuating the vertical grain and minimizing the “fleck.” Rift grain is restricted to Red Oak and White Oak. 切口刚好穿过木射线，着重直纹和减少“射线斑”，裂切只限于红橡和白橡。
- Ground meristem The central region of the apical meristem from which the ground tissues of pith, cortex, medullary rays, and mesophyll differentiate. In root meristem it is also called periblem. 基本分生组织：位于顶端分生组织的中部，髓、皮层、髓射线以及叶肉这些基本组织均是由基本分生组织分化而成。根部分生组织也称为皮层原。
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- Radioactive ray is material thing. 放射线是实际的物质。
- A ray flower or the corolla of a ray flower. 舌状花舌状花或这种花的花冠
- A ray of sunlight pierced the clouds. 一缕阳光穿透了云层。
- I was left without a ray of hope. 我连一线希望也没有了。
- Her visit brought a ray of sunshine into the children's lives. 她的来访给孩子们的生活带来了欢乐。
- Ray take a gulp of coffee and rushed out of the room. 雷喝了一大口咖啡，接着便冲出了房间。
- The shortening of the medullar rays naturally decreases the sound velocity a lot and, consequently, reduces the vibration capabilities of the instrument. 材料虽然没拿，但因此认识他太太，后来为材料的事也联系过很多次，只是材料总是不合心意，生意没成但人还是认识了。
- medullary ray; pith ray 髓(射)线
- He focused the sun's ray on a piece of paper with a burning-glass. 他用一面凸透镜把阳光在纸上聚成焦点。
- medullary ray 髓射线,髓线
- Ray took a gulp of coffee and rushed out of the room. 雷喝了一大口咖啡,接著便冲出了房间。
- Therapeutic Strategies for Medullary Carcinoma? 髓样癌的治疗策略?
- Does plaque low need do medullary puncture? ? 血小板低需要做骨髓穿刺吗？？
- secondary medullary ray 次生髓射线
