pv

pv — abbreviation

1. short for photovoltaic — relating to the process of turning light from the sun d

1.縮寫B2
釋義

short for photovoltaic — relating to the process of turning light from the sun directly into electricity using materials called semiconductors.

例句

The new housing development uses pv panels on every roof.

pv + noun: pv panels

China now produces more than 80% of the world's pv cells.

文法句型

pv + noun (pv panel, pv cell, pv system)

用法筆記

Always used before a noun (pv panel, pv cell, pv system). Capitalisation varies — lowercase pv is more common in technical writing, while PV (all caps) appears in official product names and standards.

常見錯誤

❌We are installing pv on the roof.
✅We are installing pv panels on the roof.
💡pv is an abbreviation that must modify a noun; it cannot stand alone as a noun.

2. short for polyvinyl — relating to a group of plastics made from vinyl chemical c

2.縮寫C1
釋義

short for polyvinyl — relating to a group of plastics made from vinyl chemical compounds, used in pipes, coatings, cables, and industrial films.

例句

PVC pipes are the most common example of a pv material.

pv + noun: pv material, exemplification: PVC as instance

The electrical cables are wrapped in a pv coating for safety.

pv + noun: pv coating

文法句型

pv + noun (pv material, pv coating, pv pipe)

用法筆記

Always used before a noun. Most commonly encountered in the form PVC (polyvinyl chloride) or PVDF (polyvinylidene fluoride). When used as a bare abbreviation (pv), it typically appears in technical specifications and chemical labelling.

常見錯誤

❌This pipe is made of pv.
✅This pipe is made of PVC.
💡pv alone is not the name of a specific material; PVC is the specific compound.