Polyester
Mandarin:
聚酯 (jù zhǐ)
聚酯 (jù zhǐ)
Explanation in English Language (EN):
Polyesters are a class of polymers that contain ester linkages (-CO-O-) in their backbone. These linkages are formed by the reaction of a carboxylic acid group (-COOH) with an alcohol group (-OH). Polyesters are known for their good mechanical properties, resistance to chemicals, and ability to be processed into fibers, films, and molded objects. Polyethylene terephthalate (PET) is a common example of a polyester used in bottles, clothing, and other applications.
Polyesters are a class of polymers that contain ester linkages (-CO-O-) in their backbone. These linkages are formed by the reaction of a carboxylic acid group (-COOH) with an alcohol group (-OH). Polyesters are known for their good mechanical properties, resistance to chemicals, and ability to be processed into fibers, films, and molded objects. Polyethylene terephthalate (PET) is a common example of a polyester used in bottles, clothing, and other applications.
Explanation in Mandarin (ZH):
聚酯是一类在其主链中含有酯键 (-CO-O-) 的聚合物。这些键是通过羧酸基团 (-COOH) 与醇基团 (-OH) 反应形成的。聚酯以其良好的机械性能、耐化学性以及能够加工成纤维、薄膜和模制品的能力而闻名。聚对苯二甲酸乙二醇酯 (PET) 是聚酯的一个常见例子，用于瓶子、服装和其他应用。
聚酯是一类在其主链中含有酯键 (-CO-O-) 的聚合物。这些键是通过羧酸基团 (-COOH) 与醇基团 (-OH) 反应形成的。聚酯以其良好的机械性能、耐化学性以及能够加工成纤维、薄膜和模制品的能力而闻名。聚对苯二甲酸乙二醇酯 (PET) 是聚酯的一个常见例子，用于瓶子、服装和其他应用。
International Phonetic Alphabet (IPA)
- Definition: A standardized system of symbols used to represent the sounds of spoken language.
- Purpose: Helps linguists, language learners, and educators accurately describe pronunciation across languages.
- Example: The word “hello” in British English is transcribed as /həˈləʊ/ in IPA.
- Definition: A standardized system of symbols used to represent the sounds of spoken language.
- Purpose: Helps linguists, language learners, and educators accurately describe pronunciation across languages.
- Example: The word “hello” in British English is transcribed as /həˈləʊ/ in IPA.