Moreover, the azimuth information gotten by the method can also be used as a quantity of state in such models as Kalman filtering of positioning results and further improve its accuracy.

由此估算获得的方位角信息亦能作为一项状态量作用于定位结果的卡尔曼滤波等模型中，进一步提高滤波模型的精度。

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The state provided a basic quantity of food for daily sustenance, but little else.

国家提供基本的日常食物供应，仅此而已。

《柯林斯英汉双解大词典》

The quality of state provision is an even bigger problem than its quantity.

相比于国家部门数量，它本身的品质更成问题。

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Some German states had issued their own would-be stable currency: Baden's was secured on the revenue of state forests, Hanover's convertible into a given quantity of rye.

ECONOMIST: Millennium issue: German hyperinflation

The NICS Improvement Amendments Act of 2007 (NIAA) (Public Law 110-180) was a bipartisan effort to strengthen the NICS by increasing the quantity and quality of relevant records from Federal, State, and tribal authorities accessible by the system.

WHITEHOUSE: The White House

Second, the structure of state-provided education suggests that the goal of government education is not provision of the socially efficient quantity of basic education.

FORBES: Should Governments Monopolize Education?