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- The stope downward ventilation technique has been used under different conditions in many places of our country. 回采工作面下行通风在我国许多地方的不同条件下均有使用。
- The results of the gas outburst simulation experiments showed that there was no difference in an air-flow reverse phenomenon in air inflow roadway between the upward ventilation and downward ventilation when the seam angle is ranging from0 to32°. 煤层倾角在0~2°变化,突出瓦斯相似模拟实验结果,看不出上行风和下行风对进风平巷风流逆流现象有何差别。
- She laid the picture face downward on the table. 她把那幅画正面朝下放在桌上。
- 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。
- This is a room with good ventilation. 这是个通风良好的房间。
- 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
- 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。
- downward ventilation 下向通风,下行通风
- To move a hopper or stacker upward or downward. 上下移动送卡箱或接卡箱。
- On Fire Precaution Called Downwards Ventilation Used in the Combined Coal Face 沿空掘巷综采工作面下行通风防灭火预防
- 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 ventilation is poor, the lieutenant admits. 中尉承认，通风设备很糟糕。
- Workers should be allowed full ventilation of all their difficulties. 工人们应被允许公开讨论他们所有的困难。
- 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
