On the basis of cyclic carry control of variable structure system with standard bilinear proportion a variable structure with bilinear proportion differentiation is studied.

在标准型双线性比例变结构系统循环进位控制的基础上，研究这种系统的比例—微分变结构控制。

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The American Staffordshire Terrier's standard allows a variance in weight, but it should be in proportion to size.

美国斯塔福郡梗的标准允许在重量的一个变化，但是它应该是结构尺寸均衡的比例。

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To modify the standard may cause problems such as the increase of the proportion of plastic products.

标准的调整，可能会带来塑料产品比例加大等诸多问题。恳求翻译。

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So there was no national expectation of success at school for young people - although nearly half of 11 year-olds were not even up to standard in the basics of literacy and numeracy and a similar proportion left school at or soon after 16 with few if any qualifications.

BBC: NEWS | UK | Politics | Full text: Blair on public services

The proportion of England's 11-year-olds reaching the required standard at reading increased from 67% in 1997 to 83% last year.

BBC: Critics say nationwide school tests are too stressful

Over time, the proportion of the population living in poverty, as measured by some objective and absolute standard, should be declining.

FORBES: School Choice And The Advancement Of Society