2) alee
[英][ə'li:] [美][ə'li]
向下风;下风;下风舷
3) Helm alee!
下风舵！下风舵！
4) windward wind speed
下风向风速
5) downward ventilation
下行通风
1.
Research on application of downward ventilation to coal mining face in horizontal seam with coal outburst in potential;
近水平突出煤层回采工作面下行通风应用研究
2.
Field experiments using downward ventilation were studied and the gas emission and distribution laws at the goaf working face were discussed.
结果表明,在采用下行通风后,采空区绝对瓦斯涌出量为上行风时的80%,工作面φ(CH4)下降了75%,瓦斯不再超限。
6) downriver ventilation
下行风
1.
This paper discussed methane emission,the reasons for methane reduction in up corner,problems should be considered in the condition of change from normal ventilation into downriver ventilation.
对下行通风时瓦斯涌出及下隅角瓦斯减少的原因进行论证,对上行风改为下行风应注意的问题进行了论证。
补充资料：下风
1.风所吹向的那一方。 2.比喻处于下位，卑位。有时作谦辞。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条