The Spectrum of Positiv Elliptic Operators and Periodic Geodesics
The Spectrum of Positiv Elliptic Operators and Periodic Geodesics
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正椭圆算子的谱和周期测地线
DOI：
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发表时间：
1975
期刊：
影响因子：
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通讯作者：
V. Guillemin
中科院分区：
文献类型：
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作者：
J. Duistermaat;V. Guillemin
一种装置，包括具有新型结构的防偏移供液辊，其能够在一次操作中向电子照相复印设备的定影辊供应适量的防偏移液，并且仅通过以低力保持与定影辊的接触而保持长时间的使用。供应辊包括设置在其中央部分的储液器，用于在其内容纳大量的防偏移液；以及液体渗透材料层，设置在储液器的外部，并且能够渗入防偏移液，以向固定辊供应渗入其中的防偏移液。
A device comprising an offset preventing liquid supply roller of a novel construction which is capable of supplying a suitable amount of offset preventing liquid in one operation to a fixing roller of an electrophotographic copying apparatus and remaining in sevice over a prolonged time by merely being maintained in contact with the fixing roller with a low force. The supply roller comprises a reservoir disposed in its central portion for containing therein a substantial amount of offset preventing liquid, and a liquid permeable material layer disposed outwardly of the reservoir and capable of being permeated with the offset preventing liquid for supplying to the fixing roller the offset preventing liquid which oozes therethrough.