The result shows that selecting proper location of FFUs, appropriate mode of outlet and high level terminal filter, higher cleanliness level can be obtained in spite of lower coverage rate.
认为通过合理布置末端ffu送风口位置及选择回风形式，以及选用较高级别的末端过滤器，可以在FFU满布率较低时达到较高的洁净度级别。
It is significant to find optional method for keeping the face velocity uniformity of FFU and reducing the face velocity turbulivity of FFU, furthermore, to keep the cleanliness level under FFUs.
找出优化的方法来保持风机过滤器机组的面风速均匀性及减少面风速的湍流度，对于保持风机过滤器机组下方区域的洁净度有重要意义。
It is significant to find optional method for keeping the face velocity uniformity of FFU and reducing the face velocity turbulivity of FFU, furthermore, to keep the cleanliness level under FFUs.
找出优化的方法来保持风机过滤器机组的面风速均匀性及减少面风速的湍流度，对于保持风机过滤器机组下方区域的洁净度有重要意义。
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