This paper deals with the eddy currents on the vacuum vessel of fusion devices. The eddy currents on the vessel are considered as surface currents and described by the normal components of a vector.

本文研究了聚变装置真空室上的涡流问题，将真空室上的涡流看作面电流密度并定义一矢势的法向分量来描述它。

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Using Agrobacterium vacuum infiltration method the plant bivalent expression vector pBI121 containing GUS as a report gene was transformed into lettuce Lactuca sativa l.

以GUS基因作为报告基因，利用农杆菌真空渗透法，采取正交试验设计对莴苣LactucasativaL。

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