The process of separating wax from oil by first chilling (to help form wax crystals) and then filtering under pressure in a plate and frame press.
从油中分离石蜡的过程，首先进行冷冻(帮助生成石蜡晶体)，然后用板框式压滤机在压力下进行过滤。
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The report - which is a wide-ranging assessment of press standards, privacy and libel in the UK - also makes recommendations to curb the"chilling" effect of libel actions on newspapers.