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smooth m.uscle的英文翻译是什么意思，词典释义与在线翻译：
英英释义
名词 smooth muscle:
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a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)
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muscle tissue that does not appear striated under the microscope; has the form of thin layers or sheets
