helotism

n.

古代斯巴达的奴隶制度，奴隶的身份；

A Primary Study on Removal of Arsenic in Wastewater by Arsenic-resistant helotism
The Helotism, Land Tenure and the Fall of Sparta n Polis
Helotism in the Name of Freedom——The Analysis of Rousseau's Contract Doctrine
Helotism in the Name of Freedom --The Rational Criticism to Rousseau's The Social Contract
Symbiosis, Helotism, or Inquilinism
The Role of the Ant in the Biological Control of Homopterous Insects
市政污水微藻种类鉴定及污水培养小球藻研究
Online Dictionary of Invertebrate Zoology: H
A ‘great theatre of outrage and disorder’: Figuring Ireland in the Edinburgh Review , 1802–29
La violencia en los escritos juveniles de Marx