Pitch (resin)

The pitch shown in this pitch drop experiment has a viscosity approximately 230 billion times that of water.

Pitch is a name for any of a number of viscoelastic polymers. Pitch can be natural or manufactured, derived from petroleum, coal tar or plants. Various forms of pitch may also be called tar, bitumen or asphalt. Pitch produced from plants is also known as resin. Some products made from plant resin are also known as rosin.

单词	Pine pitch
释义	Pine pitch 英语百科 Pitch (resin) Pitch is a name for any of a number of viscoelastic polymers. Pitch can be natural or manufactured, derived from petroleum, coal tar or plants. Various forms of pitch may also be called tar, bitumen or asphalt. Pitch produced from plants is also known as resin. Some products made from plant resin are also known as rosin.
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Pine pitch

Pitch (resin)