What it does have is useful social lubricants such as please (absent or rarely used in some other languages).
这种形式的运用是有益的社交调适剂，例如“请”(在其他语言中不使用或很少使用)。
It usually consists of alkane hydrocarbons and is used for coating and sealing, for candles, and in floor wax es, lubricants, waterproofing agents, and cosmetics.
通常由烷烃的混合物组成，用作涂料、绝缘材料或用于蜡烛、化妆品。
In this paper, the benefits and deficiencies of substituting paraffin for butadiene sodium rubber as the lubricants used in the production of cemented carbides are studied.
本文对用石蜡取代丁钠橡胶作硬质合金生产成形剂的优点及其不足进行了论述。
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