Meaning and Usage
"化验" (huà yàn) primarily refers to chemical examination or testing, often conducted in a laboratory or medical context. It involves analyzing substances to determine their chemical composition or properties.
Common Contexts
This term is frequently used in medical settings for tests like blood or urine analysis, as well as in environmental or industrial contexts for quality control of water, soil, or materials.
Collocations and Patterns
- 化验血液 (huàyàn xuèyè): blood test
- 化验结果 (huàyàn jiéguǒ): test results
- 做化验 (zuò huàyàn): to perform a chemical test
These collocations are common and help specify the type of chemical examination.
Usage Notes
When using "化验," it usually implies a formal, technical process rather than casual observation. It is often paired with nouns indicating the sample or material tested. Avoid confusing it with "检查" (jiǎnchá), which is a broader term for inspection or examination that may not be chemical in nature.