No one foresees how the necessary restriction of the population will be effected.
任何人都无法预知将如何实现对人口的必要限制。
Since the costs of science were rising faster than inflation, some restriction on funding was necessary.
既然科学成本上涨快于通货膨胀，资助上的一些限制是必要的。
I'll explain why this restriction is necessary later in this article.
我将在本文后面解释这一限制的必要性。
The first restriction is necessary because the other alternatives — passing parameters to a portlet, portlet messages, or portlet actions — are not available when changing a portal page.
第一个限制条件是必要的，因为其他的选择——传递参数给某一portlet、portlet消息或portlet操作——在修改门户网站页面时并不可用。
I think some restriction on the speed of cars is necessary.
我认为车辆速度的限制是有必要的。
The amoun of investment necessary to reasonable restriction .
对转投资额度进行合理限制有其必要性。
Therefore, a scientific and rational non-prosecution discretion restriction system is the necessary conditions to guarantee the right performance of the discretion.
因此，科学、合理的不起诉裁量权制约制度是保证不起诉裁量权正确行使的必要条件。
For most of these valves, a restriction is necessary to produce the required pressure control.
对于大多数的这些阀门、限制是必要的生产要求的压力控制。
Police power is likely to infringe on civil liberty. So it is necessary to restrict it. The key of restriction is to standardize police power instead of further control or resolve the power.
警察权极易对公民的自由造成侵犯，对其进行制约是必要的，制约的关键是要对警察权进行规范，而不是进一步控权或分权。
If the cross terms of the spatial frequencies for the unit cell of periodical object are much smaller than the main frequency terms, the restriction of the Angle is not necessary.
当周期物体的单胞空间频率交叉项比主频率项小到可忽略的程度时，角度限制失效。
Therefore, it is necessary to impose the compulsory state monopoly to certain restrictions. 4, such a restriction is achieved through the rules.
因此，有必要对国家垄断的强制施加一定的限制。4、此种限制是通过规则来实现的。
Therefore, it is necessary to impose the compulsory state monopoly to certain restrictions. 4, such a restriction is achieved through the rules.
因此，有必要对国家垄断的强制施加一定的限制。4、此种限制是通过规则来实现的。
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