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Some basic properties of σ- LFSR over F4 are studied, such as nonlinearity, cycle structure distribution of state graph, the largest period and counting problem related. The conclusions are as follows:The coefficient ring of σ-LFSR is isomorphic to the matrix ring over F,. The cycle structure of σ- LFSR is consistent with that of the determinant of the corresponding polynomial matrix if and only if the feedback polynomial of - LFSR does not contain nontrivial factor over F2,. The counting formula of the number of σ- LFSR with inconsistent cycle structure is also showed in that part. The period of σ-LFSR with degree n is maximum if and only if the determinant of the corresponding polynomial matrix is the primitive polynomial with order 2n over F2,.

本文研究了有限域F_4上的σ-LFSR的一些基本性质，如非奇异性、状态图的圈结构的分布、最大圈的充要条件及相关的计数问题等，得到以下结论：σ-LFSR的系数环同构于F_2上的矩阵环；σ-LFSR的状态图的圈结构与对应的多项式矩阵的行列式的圈结构一致的充要条件为σ-LFSR的反馈多项式不含有非平凡的F_2上的因式，给出了圈结构不一致的σ-LFSR的计数公式； n次σ-LFSR周期达到最大，当且仅当对应多项式矩阵的行列式为F_2上的2n次本原多项式。

The drape coefficient of ring spun fabric was higher the that of Sirospun fabric with the same blending ratio as the proportion of the soybean protein fiber was low and middle, and Sirospun fabric was higher than ring spun fabric asthe proportion of the soybean fiber was high.

大豆蛋白纤维含量在中、低比例时，相同混纺比的Sirospun织物的平均摩擦系数大于环锭织物；当大豆蛋白纤维含量在高比例时，环锭织物大于Sirospun织物。

So, too, the background galaxies behind the ring show coherent changes in their shapes due to the presence of the dense ring.

"因此，太，背景星系背后环显示，连贯的变化，在其形状，由于在场的密环"。

By using the infrared ray, a new kind of noncontact collector ring, named as noncontact infrared collector ring, is developed for the first time.

研究表明，最优的正弦修形曲线的角频率总是接近于齿轮啮合频率，初相位接近于π/2，为最优修形曲线的设计提供了一种新方法。

The traditional collector rig, like contact slip collector ring and noncontact telegraph collector ring, can not be used in high rotational speed and loud noise background.

理论和试验研究发现，相比于直线修形和抛物线修形，正弦曲线修形在很大的工况范围内，具有良好的减振、降噪效果，特别是对于减小高频成分的振动效果更明显。

Electrical wiring spile on the ring, passing into the collector ring of power to pass through the internal outlet to the device.

确认上述各款都以做到，方可送电试车，空载运转往复20个圆周后无异常现象，即正式工作运行。

This article with information about engagement ring was sent in from Heather Colman at: from: engagement-ring-centre.info .

这条信息订婚戒指，被送往在从希瑟柯曼：从：参与环centre.info 。

Inhibition ring tests show that when the detergent is diluted to 0.2%,the ring diameter sizes for Staphylococcus aureus and colon Bacillus are 28.8 mm and 11.5 mm respectively.

采用抑菌环法做抑菌实验，该抗菌洗洁精在稀释至质量分数为0.2%时，对金黄色葡萄球菌和大肠杆菌的抑菌环直径分别为28.8 mm和11.5 mm。

Is a Sino-foreign joint venture established by a thorough reformation of Nanping Automobile Fitting Factory, the chairman unit of auto-used piston ring and piston of China Association of Automobile Manufactures, and the committeeman of piston ring and piston branch of National Automotive Standardization Technical Committee.

南平华闽汽车配件工业有限公司是由原南平汽车配件厂改制后成立的中外合资企业，是中国汽车工业协会车用活塞、活塞环委员会理事长单位，全国汽车标准化技术委员会活塞、活塞环分技术委员会主任委员。

In this paper, we introduce the notion of M-valuation systems for a commutative ring, and investigate the M-valuations from the inside of a commutative ring.

在本文中，我们引进了M-赋值系统的概念，从环的内部给出交换环上M-赋值的结构。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。