介绍了铊的地球化学性质、分布状况、生理毒性和临床表现及环境迁移转化过程。
Thallium geochemical properties, distribution, physiological toxicity, clinical symptoms, chemical migration and transformation in the environment were reviewed.
化学诱导剂BTH的诱导效率高于SA，且在有效诱导浓度范围内对植株没有生理毒性或所产生的生理毒性难以从表象观察到。
BTH had a higher efficiency to induce GUS expression than SA indicated by GUS staining strength and had no phytotoxicity to plant within effective concentration.
某些药物和一些生理疾病，比如病毒性疾病或甲状腺疾病能够引起与抑郁症相同的症状。
Certain medications, and some medical conditions such as viruses or a thyroid disorder, can cause the same symptoms as depression.
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