备受争议的“呜呜祖拉”加油工具已成为南非世界杯的一大标志，日前，一家网络公司推出了一种据称可消除这种塑料喇叭所发出的噪音的“呜呜祖拉滤声器”。
An online company has begun marketing an "Anti Vuvuzela Filter" that promises to silence the sound of the controversial plastic trumpets that have become the trademark of South Africa's World Cup.
凝聚过滤器滤槽中汇集的液体可自动排入共用的排水箱。
Liquids collecting in the coalescing filter sump are automatically drained into the common drain tank.
用纤维素酶和半纤维素酶处理漂白麦草浆可明显改善纸浆的性能，如滤水性、脆性、强度和白度等。
To treat bleached wheat straw pulp with cellulase and hemicellulase can remarkably improve such characteristics of the pulp as drainage, fragility, physical strength and brightness.
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