When the query is executed without distribution statistics, a snapshot for dynamic SQL returns the following monitor values (given that the required monitor switches are active).
在没有分布统计信息的情况下,执行该查询时,动态sql的一个快照返回以下监视器值(假定所需的监视器开关已激活)。
Install, replace and repair lighting fixtures and electrical control and distribution equipment, such as switches, relays and circuit breaker panels.
安装,更换和修复照明灯具和电气控制及配电设备,如开关,继电器和断路器面板。
The Distribution Automation system of YinChuan involves 104 out-door switches, 10 switch stations, 14 section trans- formers and single transformers of the whole old city zone.
银川配电自动化项目涉及整个老城区的104台户外开关,10座开闭所,14台小区变与台变。
However, at the distribution level, 'tie switches are used to switch feeders or feeder sections between transformers in the same station, or to adjacent substations for substation transformer load.
然而在配电等级,联络开关用来开合同一变电站中不同变压器上的馈线或馈线段,或切换到邻近变电站以进行变电站变压器的负荷管理。
A directional tree model based on switches is proposed for fault section locating in distribution network by using system Structure and operation status.
针对配电网故障区间定位的问题,利用配电网的结构和运行状态,提出一种基于开关有向树型网络描述模型。
In order to get beam steering, the switches control the states of the parasitic monopoles to change their impedance and current distribution.
为了实现波束可控,可用开关控制无源单极子的接地状态来改变其阻抗和电流分布。
Aiming at the recovery after the failure of distribution network with several contact switches, a fast new recovery method is put forward.
针对具有多个联络开关的配电网故障后的恢复供电问题,提出了一种新思路。
The reliability of distribution networks can be improved and custom interrupt loss can be reduced by disconnect switches properly positioned.
配电网分段开关优化配置,可以减少用户停电损失,提高供电可靠性。
Combining with actual situation in some projects, installation of switches, sockets, wall lamps and power distribution boxes on the wall with dry-hanging stone material are introduced.
结合工程实际情况,介绍干挂石材墙面上安装开关、插座、壁灯、配电箱等的做法。
This paper outdoor distribution equipment and layout of the bus architecture, power transformers, high-voltage circuit breakers, switches and arrester and isolation transformer and so on.
室外配电装置选型主要包括中型配电装置、高型配电装置、半高型配电装置等。
Releasing action of distribution boxs switches caused by heat-affection in fire will lead to tripping, thus power supply for fire equipment cant be guaranteed.
针对目前配电箱开关在火灾热影响下由于脱扣机构动作引起跳闸,不能保证消防设备供电问题,经过对消防配电箱的火灾试验研究,分析了外部热源对开关动作的影响。
The distribution pattern of seedlings switches from colony distribution to random and well-distributed as the age level rised.
不同生境中的实生苗随着龄级的升高,空间分布格局由集群分布转变成随机均匀分布。
The distribution pattern of seedlings switches from colony distribution to random and well-distributed as the age level rised.
不同生境中的实生苗随着龄级的升高,空间分布格局由集群分布转变成随机均匀分布。
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