Holtzd wooden door is sealed with CPL material. What material is CPL?

CPL is not a substance, but a polysemous word, which means:

1, CPL refers to the circular polarizer of photographic equipment;

CPL refers to circular polarizer, or circular polarizer, which is the abbreviation of circular polarization filter. It has the function of increasing color density and deepening sky blue.

2.CPL refers to the professional e-sports alliance:

The Chinese name of CPL is Professional E-sports League, which was founded in 1997 and was founded by angel munoz. The reason for its establishment is to report and hold news and competitions of professional e-sports competitions.

3.CPL refers to China Physical Express:

China Physics Express is an English academic monthly magazine founded by the Chinese Physical Society, 1984. Its purpose is to quickly spread the latest achievements of theoretical and experimental physics in China and introduce the new achievements of interdisciplinary subjects and applications related to physics.

4.CPL refers to China Motorboat League:

China Motorboat League, English name ChinaPowerboat League, CPL for short. China Motorboat League is the first tournament-based water sports event sponsored by the Water Sports Management Center of the State Sports General Administration and China Motorboat Association.

It is a professional, socialized and market-oriented competition platform built by the Water Sports Management Center of the State Sports General Administration. China Motorboat League is operated and promoted by Beijing Today Impact Investment Management Co., Ltd.

5.CPL refers to the cost measurement method based on inbound marketing:

CPL is a cost measurement method based on inbound marketing in the era of big data, that is, it measures the cost of each sales lead, not CPC.

Baidu encyclopedia -—CPL

Baidu encyclopedia -—CPL

Baidu encyclopedia -—CPL

Baidu encyclopedia -—CPL

Baidu encyclopedia -—CPL