paraffin

/par-uh-fin/US // ˈpær ə fɪn //UK // (ˈpærəfɪn) //

石蜡,巴拿芬,石腊,巴拿芬的

Definitions

n.名词 noun

1
- : a white or colorless, tasteless, odorless, water-insoluble, solid substance not easily acted upon by reagents, consisting of a mixture of hydrocarbons chiefly of the alkane series, obtained from crude petroleum: used in candles, for forming preservative coatings and seals, for waterproofing paper, etc.
- : Chemistry. any member of the alkane series.one of the higher members of the alkane series, solid at ordinary temperatures, having a boiling point above 300°C, which largely constitutes the commercial form of this substance.
- : Also called paraffin oil .British. kerosene.

v.有主动词 verb

The new process designed by the researchers uses a catalyst to add extra carbon to the VFA molecules, converting them into paraffin that is essentially identical to that found in standard jet fuel.
They are grayish or colorless, and have a dull waxy look, as if cut from paraffin (Figs. 43 and 61).
Melt some wax or paraffin in a suitable vessel and cover the surface of the wood, using a brush or rag.
Place over the first layer two layers of paraffin paper and wind on a second layer of wire.
Outside of the completed secondary winding place at least six layers of paraffin paper, or several layers of insulating cloth.
Wind about 240 turns on each layer and place one layer of paraffin paper between each layer of wire.