萘是一种无色具有芳香味儿的化学品，广泛应用于石油化工、染料、香料、医药等领域。下面，我将为大家介绍萘的主要用途。

Naphthalene is a colorless and aromatic chemical widely used in fields such as petrochemicals, dyes, spices, pharmaceuticals, etc. Next, I will introduce to you the main uses of naphthalene.

首先，在石油化工领域，萘用作石油裂解气的加工剂，生产对苯二酚、环己烷等产品。

Firstly, in the field of petrochemicals, naphthalene is used as a processing agent for petroleum cracking gas, producing products such as hydroquinone and cyclohexane.

其次，在染料和香料领域，萘是生产蒽醌、联苯胺等染料和香料的关键原料。此外，萘还可以作为染料中间体和香料的生产原料。

Secondly, in the field of dyes and fragrances, naphthalene is a key raw material for producing dyes and fragrances such as anthraquinone and benzidine. In addition, naphthalene can also be used as a raw material for the production of dye intermediates and spices.

最后，在医药领域，萘作为一种抗氧剂，被广泛应用于医药、化妆品等领域。

Finally, in the field of medicine, naphthalene, as an antioxidant, is widely used in fields such as medicine and cosmetics.

总之，萘在各个领域都有广泛的应用，是一种非常重要的化学原料。

In summary, naphthalene has a wide range of applications in various fields and is a very important chemical raw material.