Specifically, the Working Group was mandated to focus on three lines of activity with relation to the haf.

具体来讲，工作组的使命在与卫生行动框架有关的三个方面进行工作。

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Panel filter: an electro statically charged HAF (High Air Flow media) industrial grade panel filter comes standard on all TSC dryers to help protect the the dryer from ingress of dust.

面板过滤器：过滤器表面采用静电处理，并且使用HAF(其中使用的过滤介质可以承受大气量要求)工业等级的滤芯。

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A blend with better properties could be obtained by adding phenolic resin 2402/tin bichloride (8/0. 5) curative and a certain level of dioctyl phthalate plasticizer and HAF reinforcing agent.

硫化体系采用酚酸树脂2402／氯化亚锡（8／0．5）、加入一定量的增塑剂邻苯二甲酸二辛酯和补强剂高耐磨炭黑，可获得性能较好的共混体。

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Haf Elgar of Friends of the Earth Cymru called on ministers to "intervene and to discuss with them how we can overcome this as soon as possible".

BBC: Poor roads delay wind farm plans

Rydym ni wedi cael haf anarferol tu hwnt.

BBC: Cwestiynau iechyd a gwasanaethau cymdeithasol

The student prize went to Swansea Metropolitan architectural glass MA student Rhian Haf of Gwythevin, Abergele, for her glass sculpture Glass, Light and Space - a group of glass houses cast using an ancient lost wax technique.

BBC: fleece painting