上位的

In this model, hardware system, in which PLC is adopted as monitoring lower computers and computers are adopted as monitoring upper computers, collects and supervises various data of control rooms environment of transformer substation and power device by various sensors installed on the spot, and the real-time data shows the running information of diverse transformer substations intuitionally and timely; Combination of computers and PLC fully utilizes each characteristics and advantages of computers and PLC, and enhances the stability of the whole system.

硬件系统采用PLC作为下位机，计算机作为上位机，通过现场安装的各种传感器对隧道变电所机房环境和动力设备等各种数据进行采集和监控，这些实时数据及时直观的反映了各个变电所各项运行信息。

The most important part in the control system is MPC02 card which receives control signals from the PC and sends instruction to step motor, sever moter, electric-valve, annunciator and other apparatus.

本文研制的检测台为上—下位机控制系统，上位机采用PC机，下位机是基于MPC02控制卡的控制系统。

Carpels 2, rarely 3-5(-10), usually ± connate; ovary superior or semi-inferior to inferior, 2- or 3-5(-10)-loculed with axile placentation, or 1-loculed with parietal placentation, rarely with apical placentation; ovules usually many, 2- to many seriate, crassinucellate or tenuinucellate, sometimes with transitional forms; integument 1- or 2-seriate; styles free or ± connate.

心皮2，很少3-5(-10)，通常多少合生；半不如下位的子房上位或，2-或3-5-10室具中轴胎座，或1室具侧膜胎座，很少具顶端placentation；通常胚珠很多，2-在很多具薄珠心的crassinucellate或，有时具过渡形式，seriate；珠被1或2 seriate；花柱离生或多少合生。

Stuber et al.(1992) considered the overdominance is the major genetic basis of heterosis in maize; Xiao et al.(1995) suggested the dominance is the major molecular mechanism of heterosis in rice. Subsequently, Yu et al.(1997) and Hua et al.(2003) demonstrated the epistasis made the siginificant contribution to heterosis in rice.

Stuber等认为，超显性是玉米杂种优势形成的主要原因；Xiao等(1995)认为显性作用是水稻杂种优势形成的遗传基础，Yu等(1997)和Hua等(2003)认为上位性在杂种优势形成过程中起重要作用。

Ovary superior, 1-loculed, apically with 2 pendulous ovules; styles 2, dissimilar, 1 longer and thicker, cylindric or subclavate, persistent on fruit, other style shorter and thinner, with capitate stigma.

花盘无。子房上位，1室，顶部有2个倒生胚珠；花柱2，不同，1个较长和粗，圆筒状或者近棍棒状，在果期宿存，另外一个花柱较短和较瘦的，有头状的柱头。

Tecent net is patted subordinately pat a net to also take the chance to go up, nibble the market share with easy much interest.

腾讯网旗下的拍拍网也趁机上位，蚕食了易趣大量的市场份额。

Key location getting off place machine and the superordination machine serial news report being that entire system middle is the most important and degree of difficulty is maximal.

下位机与上位机的串行通讯是整个系统中最重要且难度最大的关键所在。

Based on MCGS software of PLC control system, PLC hardware structure of the typical and superordination machine (ordinary PC or industrial IPC machine) through RS232 serial connection lines or RS485 communication.

基于MCGS 组态软件的PLC 监控系统的典型硬件结构中PLC 与上位机(普通PC 机或工业IPC 机)之间通过RS232 或RS485 串行线路连接进行通信。

A short unwelded area in the weld line extending through the entire pipe so that fluid will leak out through the area very slowly.

针孔。指焊缝线上位焊接的、贯穿管子整个壁厚的细孔，可导致流体从该孔缓慢漏出。

Based on a few failures of the canopy elevator system of some main force Fighter,this paper analyzes the working principle of the uplock and the causes of the rupturing of the rocker ,proposes some repairing and maintaining solutions.

通过故障实例，综合分析某型现役主力战机座舱盖升降系统上位锁的工作原理及该系统中摇臂断裂故障产生的原因，提出修理及维护对策。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。