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- A primary pump directs the meltwater from the borehole into the drill, and a secondary pump sends the meltwater up the tether to the surface for analysis. 主要的帮浦会将凿孔内的融冰导入钻井机中，而次要的帮浦则是将融冰藉由缆绳向上传送到地表，以供分析。
- Presents the air conditioning system and smoke exhaust system design of this project, applies the primary air fan coil system and secondary pump water system in the Top Electronics City. 摘要简要介绍了鼎好电子商城空调系统和防排烟系统的设计，商城采用了风机盘管加新风空调系统和二次泵空调水系统。
- Optimal strategy for the control of secondary pump according to value positions of auto controlled AHU vales. 利用 AHU自动控制水阀的阀位信息 ,实时优化二级水泵的控制 ;
- And (3) Optimal strategy for supply chilled water temperature control of chillers according to valve positions of auto controlled AHU valves and working status of secondary pump. 利用 AHU自动控制水阀的阀位信息以及二级泵的工作状况 ;实时优化冷水机组出水温度的控制 .
- And (3) Optimal strategy for supply chilled water temperature control of chillers according to valve positions of auto-controlled AHU valves and working status of secondary pump. 利用AHU自动控制水阀的阀位信息以及二级泵的工作状况，实时优化冷水机组出水温度的控制。
- Characteristic, constitution design and control ways of air conditioning system of AISC 1780mm Hot Rolling Strip Production Line are described, in which secondary pump system is mainly expounded. 介绍鞍钢1780 热轧带钢生产线空调系统的特点、构成、设计及控制方案。 主要阐述二次泵系统的应用。
- secondary pump station for water supply 二级供水站
- Based on the analysis of working conditions of system, puts forward the design scheme of automatic control system for secondary pumps, and the problems deserving to be noticed. 通过对系统的运行工况分析，提出了二次泵自动控制设计方案，并指出了需注意的几个问题。
- Connecting with example this paper introduces the ratio nal application of bypass pressure fixing and secondary pumping system in air co nditioning s cooling water system of tall buildings. 本文结合实例介绍了旁通定压和二级泵系统在高层建筑空调冷水系统中的合理应用。
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- Primary coil induces current in secondary coil. 初级线圈在次级线圈中产生电流。
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Master databases from the primary to the secondary. 数据库从主服务器还原到辅助服务器。
- Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- Some are primary and others are secondary. 一些是主要的另一个比较次要。
- The Democratic primary was held this month. 民主党候选人初选於本月举行。
