The existing problems on municipal solid waste(MSW) incineration, emission control and fly ash disposal are illustrated herein, and the direction of zero dioxin emission is put forward as well.
本文阐述了目前我国垃圾焚烧处理现状、尾气控制现状以及飞灰处理存在问题，提出了我国垃圾焚烧处理二恶英零排放的方向。
Inhalation of the liquid along the axis, the horizontal direction of emission.
液体沿轴向吸入，水平方向排出。
For exploring the direction of acoustical emission sources prior to earthquakes, assuming that the sound velocity is only dependent on depth, a formula of sound source direction can be derived.
为探索震前声发射的方向与地震的关系，假定声速仅与深度有关，在这种条件下得到的方向公式应该与恒速条件下得到的方向公式一致。
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