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To maintain a hygienically cleanliness of all coffee urns .

为了保持所有咖啡壶的干净卫生。

To maintain a hygienically cleanliness of walk-in cool rooms and freezers .

为了保持大冷冻房和制冷器的清洁卫生。

This extra step was hygienically redundant but psychologically vital in helping singaporeans accept newater as a fact of life .

从卫生层面上来看这一步是完全不需要的，但这对于帮助新加坡人打心底接受newater计划又是至关重要的。

To maintain a hygienically cleanliness of ovens and salamanders .

为了保持烤炉和火钳的清洁卫生。

To maintain a hygienically cleanliness of refrigerators .

为了保持电冰箱清洁卫生。