什么是封建主义
一种17世纪时已逐渐没落的制度,它代表了欧洲的经济、法律、政治和社会关系,起源於中世纪。在这种制度中,封臣以领地的形式从领主手中获得土地。封臣要为领主尽一定的义务,并且必须向领主效忠。在更广泛的意义上,封建主义一词指“封建社会”,这是特别盛行於闭锁的农业经济中的一种文明形式。封建主义的另外一个方面是采邑制或庄园制,在这种制度中,地主对农奴享有广泛的警察、司法、财政和其他权力。11世纪封建主义把欧洲原本失序的政治恢复原有的秩序,同时也成为日後形成强大君主势力的基础。封建主义也传到一些非西方社会地区,在那里可以看到类似中世纪欧洲的组织。尽管封建主义到14世纪末已经不再是一种政治的和社会的力量,但它仍然在欧洲社会中留下了自己的烙印。它对现代形式的立宪政府的形成产生了极大影响。
feudalism
Term that emerged in the 17th century that has been used to describe economic, legal, political, social, and economic relationships in the European Middle Ages. Derived from the Latin word [latin]feudum (fief) but unknown to people of the Middle Ages, the term “feudalism” has been used most broadly to refer to medieval society as a whole, and in this way may be understood as a socio-economic system that is often called manorialism. It has been used most narrowly to describe relations between lords and vassals that involve the exchange of land for military service. Feudalism in this sense is thought to have emerged in a time of political disorder in the 11th century as a means to restore order, and it was later a key element in the establishment of strong monarchies. “Feudalism” also has been applied, often inappropriately, to non-Western societies where institutions similar to those of medieval Europe are thought to have existed. The many ways “feudalism” has been used have drained it of specific meaning, however, and caused some scholars to reject it as a useful concept for understanding medieval society.
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什么是农业中毒
农业、林业、牧业、渔业与养殖业生产过程中,接触有毒化学物质引起的中毒。农业从业人员接触各种有毒化学物质的机会较多,因此容易中毒。中毒有急、慢性,严重的中毒可导致死亡。有些毒物还可以引起肿瘤或子代畸形。在生产过程中,加强安全防护措施,能够有效地防止农业...
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什么是浸润
组织内侵入了异常的细胞或出现了正常情况下不应出现的机体细胞,以及某些病变组织向周围扩展的现象。在细胞内或间质中出现异常的物质、或原有的某些物质的堆积过多也称为浸润。有的变性或沉积也称为浸润。浸润大多为病理性的,但有时是为了治疗目的而人为的。它们...
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什么是羊水
充满羊膜腔位于胎体周围的液体。随着妊娠时期的不同,其来源、容量与组成亦有变化。妊娠早期羊水主要是由母体血浆通过胎膜进入羊膜腔的漏出液,澄清透明。妊娠中期起,胎儿尿液可能成为羊水的重要来源,此时羊水略混浊,并有白色小片状物质(脱落的毳毛、皮肤细胞、胎脂)悬...
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什么是六淫
自然界风、寒、暑、湿、燥、火六种致病因素的合称。“淫”有太过之意。风、寒、暑、湿、燥、火本指自然界六种不同的气候或环境状态,合称六气。若六气太过、不及或与季节时间不符,超过人体所能适应的限度,则成为致病因素,这种情况下的六气即成为六淫,或称六邪。六淫...