the object of this paper is to prove three theorems of associated ring's commutativity.

1、

afterwards, the thesis discussed the dependence and the commutativity of change operations.

接着，文章讨论了变更操作可能存在的交换性和依赖性问题。

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2、

a test technique of commutativity for java program

面向Java操作的可交换性检测技术

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3、

the commutativity of composition for the finite rotation of rigid body

刚体有限转动合成的可交换性

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4、

the present paper presents a commutativity theorem of rings with identity.

给出有单位元的环的一个交换性定理。

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5、

second, the meeting will review the implementation of the tfap and ipap, and will endorse the economic pillar review report.

其次，会议将审议《贸易便利行动计划》和《投资促进行动计划》的执行情况，并通过《亚欧经济合作审议报告》。

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6、

research on the silicon nutrition in soil and plant

土壤和植物的硅素营养研究

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7、

advances in silicon nutrition of plants

植物硅营养的研究进展

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8、

review of researches advance on rice silicon nutrition

水稻硅素营养研究进展

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9、

research advance of silicon nutrition

硅素营养研究进展

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10、

the advance in research of silicon nutrition of higher plants

高等植物硅素营养研究进展

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11、

silicon nutrition in plant and the popularization of silicate fertilizer

植物的硅素营养及硅肥的推广应用

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12、

relationship of nitrogen uptake and utilization to silicon nutrition in rice

水稻氮素吸收、利用与硅素营养的关系

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13、

the research status and prospects about plant silicon nutrition and soil silicon fertility

植物硅素营养与土壤硅素肥力研究现状和展望

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14、

effects of nitrogen and silicon nutrition on rice blast occurrence under intercropping with different type varieties

不同品种间作条件下的氮硅营养对水稻稻瘟病发生的影响

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15、

for the technology to work like a disk, though, the same bits of data will have to pass repeatedly under the reading and writing heads.

然而，要使这一技术像硬盘那样运作，同样位数的数据要不断地穿过读写磁头。

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16、

under the guidance of writing teaching mode, we investigated and tested the model of teaching effect, and modified the model.

在信息技术环境下四能力写作教学模式的指导下，我们进行了实验研究，检验了该模式的教学效果，并对该模式不符合写作教学实际的部分进行了修改。

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17、

from the simulation results we can observe that this device can be written and erased under proper writing and erasing voltage.

从仿真结果中可以看出，该器件在特定的编程电压和擦写电压下，可以对其进行编程和擦除的操作。

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18、

under writing program policy, you cannot pass the course if you have more than five unexcused absences.

在写作专题的政策之下，如果你有超过五次的无故缺席，将无法通过这门课程。

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19、

automatic measurement technology on braided pitch length of three-dimensional braided composite material preform

编织复合材料预制件花节长度的自动化测量系统实现

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20、

experts say mini-vacations, brief holidays of four days or less, offer today's traveler a restorative pause without the pressure or expense of a long journey.

专家表示，4天之内的迷你短假不仅可以让如今的旅行者在紧张的生活中缓缓神儿，还能免去长假带来的压力和花销。

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