这个词是什么意思？
A gas that condenses under slight pressure. Because of its low boiling point ethyl chloride sprayed on skin produces an intense cold by evaporation. Cold blocks nerve conduction. Ethyl chloride has been used in surgery but is primarily used to relieve local pain in sports medicine.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D005018 · MeSH 2026。
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