Pocket Frogs口袋青蛙
parsley frogs合跗蟾属
Jumpy Frogs跳跃的青蛙
puddle frogs蟾蛙属
leopard frogs豹蛙
brown frogs林蛙
hundred frogs百青蛙
Fifteen Frogs十五只青蛙
Frogs Too青蛙也
Also the visual path of frog and the corresponding area of the vision in the brain have been studied.
并简单介绍了青蛙等两栖类动物在视觉通道上的神经组织结构以及视觉信息在脑中的对应区域。
参考来源 - 青蛙视觉行为的初步研究与计算机模拟When a vehicle is passing through the turnout, the loads are supported by the blade and stock rail in switch or by wing rails and flexible frog nose rail in frog.
当车辆通过可动心轨式单开道岔时,在转辙器区,尖轨和基本轨、在辙叉处翼轨和心轨共同承受外来载荷:在护轨处,轮缘背部和护轨产生剧烈的横向冲击,这些因素决定了轮轨之间必须采用多点接触模型。
参考来源 - 列车—变截面道岔动力学仿真分析Frog is the position that destroyed most seriously in the railway line.
辙叉是铁路结构中损伤最严重的部位。
参考来源 - 空冷贝氏体辙叉钢焊接性能研究N-COUNT（可数名词） A frog is a small creature with smooth skin, big eyes, and long back legs which it uses for jumping. Frogs usually live near water. 蛙
N（名词） a decorative fastening of looped braid or cord, as on the front of a 19th-century military uniform (19世纪军装上的)装饰性盘扣
N（名词） a tough elastic horny material in the centre of the sole of a horse's foot (马蹄铁底部的)弹力硬角状物
N（名词） a grooved plate of iron or steel placed to guide train wheels over an intersection of railway lines (铁路线上的)开槽铁盘或钢盘