People can select the time discretionarily to save the data into the microsoft access database 数据库存储数据的时间可以任意选择。
2.
Computer can control microcontroller , which can select channels data - acquisition discretionarily . 2 微机可以控制单片机的运行，可以任意选择采集通道。
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The motion of lower plate can be selected discretionarily in the few motion modes such as device prizing , hydraulic cylinder and steel wheel according to the situation of construction site and the working habit of construction unit to content construction ' s requirements . 下盘的移位可根据施工现场情况及施工单位的工作习惯，在撬装、液压缸步标、钢轮等几种移位方式中任意选取，以满足施工的要求。
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The control kernel of the system is microprocessor c8051f020 and , 54 parallel ports for connecting high voltage system have been expanded . a new network circuit for i / o control was designed to control 54 pt electrodes to switch discretionarily in 3 states ? high voltage , grounding and suspending 硬件系统以c8051f020为控制核心，设计了一种i o网络组合控制电路来控制54根pt电极，在三态(高压、接地、悬空)之间的任意转换。
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So it can better isoline draw process for analyzing mineralization result and groundwater hydrochemistry law of anion , cation distribution , it can also design and carry out superposing analysis function and use superposing method draw zone figure of hydrochemistry type . moreover , the system of secondary development has function that stores ultimate figure result into spatial database , it is not steady but flexible at any moment , it can so discretionarily superpose together with other figure layers that it forms synthesis figure set of multi - layer superposing and complicated content for the zone supplying accessorial support 该系统在完成了基本数据管理、图形显示及查询功能之外，还实现了等值线生成功能，大大简化了过去为分析矿化度、阴、阳离子分布等水化学规律而作的等值线绘制工作；该系统还设计实现了叠置分析功能，用于在等值线绘制功能的基础上，通过叠置分析的方法绘制出水化学类型分区图。
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The leec biochip can be connected with pcb ( printed circuit board ) , thus it can generate a moving electric field by changing time , scope and field intensity discretionarily under single chip processor ' s control . meanwhile it is probable to reduce driving voltage and decrease temperature greatly , and so increase resolution of dna separation 研究内容包括线性分布式电极阵列的理论设计，以普通载波片和有机高聚物pdms ( polydimethylsiloxane )为基本材料的芯片制作工艺， leec芯片和pcb板的连接方式，硬件控制系统的设计以及控制芯片工作的单片机程序编制等，此外还包括电化学检测方法的研究。
