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- The results show that a downward propagating gravity wave packet can be excited by two up-going gravity wave packets owing to the nonresonant interaction. 研究表明：两个向上传播的重力波波包，通过非共振相互作用，也能激发出一个向下传播的重力波波包。
- She laid the picture face downward on the table. 她把那幅画正面朝下放在桌上。
- Tropospheric wave response to decelerated stratosphere seen as downward propagation in northern annular mode 对流层波对北半球环状波中视为向下传播的平流层下降的响应
- A downward tendency, as in the price of a stock. 下降趋势如股票价格等的下降趋势
- Prices started a downward plunge. 价格开始猛跌。
- He looked downward to avoid my eyes. 他低著头看,以避开我的目光。
- A downward incline or passage; a slope. 斜面，斜坡向下的斜面; 倾斜面
- Projecting downward; overhanging. 向下突出的; 悬伸在外的
- Downward propagation 向下传播
- The molten lava got into every nook and cranny on its downward path. 熔岩向下流动时，无缝不钻，无孔不入。
- The sun sometimes spoils the propagation of radio waves. 太阳有时会影响无线电波的传播。
- To move a hopper or stacker upward or downward. 上下移动送卡箱或接卡箱。
- Emission and propagation of energy in the form of rays or waves. 发射以光线或波的形式发出和传播能量
- A faucet with a nozzle that is bent downward; a bibb. 弯嘴龙头一种带有向下弯曲的喷嘴的龙头; 龙头
- A downward inclination or slope. 倾斜向下的倾斜或斜坡
- He lies on the ground face downward. 他脸朝下趴在地上。
- The propagation of animals or plants. 动物的饲养，植物的培植
- Reproduction and spread; propagation. 复制和散布；繁殖
- A wedge-shaped charge pointing downward. 楔形普通图记一种头朝下的楔形图章
- Located beneath or directed downward. 下的处于下方的或向下生长的
