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- A red pigment in the retinal rods of vertebrates; dissociates into retinene by light. 脊椎动物视网膜棒体中的红色色素，在光的作用下分离成视黄醛。
- The concrete walls are reinforced with steel rods. 混凝土墙是用钢筋加固的。
- I bought a new fishing rod last Sunday. 上星期日我新买了一个鱼竿。
- We have two sorts of light receptors in the retina, rods and cones. 我们的视网膜里有两种受光体，视杆细胞和视锥细胞。
- retinal rods [医] 视网膜杆
- The movable target on a leveling rod. 视准器水准尺上可移动的目标
- The optical system of the eye stimulate cell of the retina. 眼睛的视觉系统刺激视网膜内的细胞。
- The rod bent as he pulled in the fish. 当他把鱼拉上来时，鱼竿都弯了。
- Sight is made possible by rays of light impinging on the retina. 由于光线射到视网膜上,眼睛才看得见。
- Spare the rod and spoil the child. 不打不成器。
- A unit of area equal to a square rod. 平方杆等于一平方杆的面积单位
- All major groups of vertebrates have rods in the retina as well as cones. 所有主要脊椎动物类群的视网膜中，都同时含有杆细胞与锥细胞。
- The optical system of the eye stimulates cells of the retina. 眼睛的视觉系统刺激视网膜内的细胞。
- A rod or lever transmitting motion in a machine. 连杆机器中传递运动的连杆或杠杆
- The model is an odd-looking structure of balls and rods. 这个模型是由球和杆组成的结构，样子很奇特。
- If it were gentle, only the more unstable rods fell. 若地震是微弱的，仅那些比较不稳定的杆子倒下。
- retinal rodn. 视网膜圆柱细胞;视杆
- I knew I was in trouble when I was taken to the garage with a rod. 当我被人拿著棍棒赶到车库时,我知道我惹下麻烦了。
- Rhegmatogenous retinal detachment in children. 儿童孔源性视网膜脱离。
- The iron rod supporting the valances was bent in an arc. 挂窗帘上部短幔的铁棍弯成了个弓形。
