One of the big disincentives to placing weapons in space has been the technical difficulty and cost of such an enterprise.
一直以来，在太空部署武器
主要障碍之一就是技术难度以及该项事业高昂成本。
事物;
碍某事物进展或活动
或物;气馁;
,促进因素,激发因素;止;
;
利, 劣势, 短处;事物或;One of the big disincentives to placing weapons in space has been the technical difficulty and cost of such an enterprise.
一直以来，在太空部署武器主要障碍之一就是技术难度以及该项事业高昂成本。
What incentive and disincentives were used to encourage compliance with the one-child policy? Which were used more – incentives of disincentives, and why?
一孩政策采用了什麽激励和抑制手段来鼓励
们遵守？激励和抑制—那一种手法是多用？
什麽？
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