primary water

The primary sedimentation tank is the pretreatment construction of secondary waste water treatment plant, and the main construction of first waste water treatment process.

初沉池是二级污水处理厂的预处理构筑物，一级污水处理厂的主要构筑物。

Determination of Formaldehyde Content in Water by Adopting New Spectrophotometry with Primary and Secondary Double Wave Length

主次双波长新分光光度法测定水中甲醛含量

In addition, according to the evaporation mechanism, two methods of the equivalent temperature dropping and the constant temperature evaporating are used to deal with the effect of water sprayed on the cold side of primary heat exchanger.

此外，应用焓参数匹配的基本思想和水蒸发的物理机理，提出了当量温降法与等温蒸发法处理初级热交换器冷边的喷水效应。

The selecting coagulant tests for the treatment of low turbidity Min River primary water

处理低浊度闽江原水的混凝剂选择试验

Through the concept of primary crystal size and testing of primary crystal size and flowability, water demand of high-temperature alumina powder is studied and discussed.

运用原晶粒度的概念并通过对原晶粒度、流动度的检测，对高温氧化铝的需水性进行了研究和探讨。

Drawing up water quota of middle and primary school in wuhan

武汉市中小学取水定额研究报告

One primary cause of forming collapse column is the karstic water intense corrosive nature, the ground water rich place often is the collapse column growth place.

岩溶水强烈的侵蚀作用是形成陷落柱的主要原因之一，陷落柱也往往也是沿着地下水丰富的位置发育。

Primary study on data of water pipe tiltmeter with type FSQ of Sunan station

肃南台FSQ型长水管倾斜仪观测资料初步研究

In view of the shortcoming of high water carbon ratio and high energy consumption in traditional Kellogg craft, which is used in the primary reforming process of the existing synthetic ammonia fitting commonly, develops one kind of new low-water carbon ratio conversion catalyst.

针对现有合成氨装置一段转化工序普遍采用的传统Kellogg工艺存在的水碳比高、能耗高的缺点，开发出一种新型低水碳比转化催化剂。

Steam generator ( SG) is one of main equipments in the pressurized water reactor ( PWR) nuclear power plant, but also it is a pivotal equipment which brings heat from reactor core to the secondary loop coolant by primary loop water.

蒸汽发生器是压水堆核动力装置中的主要设备之一，也是把一回路冷却剂从反应堆堆芯带出的热量传给二回路水的关键设备。

Along deep faults, mantle primary water may automatically rise into the upper crust to mineralize there, or rise with magmatic melt, or even enter metamorphic belts to become part of the ore-bearing hydrothermal system.

地幔初生水可沿深大断裂自动上升到地壳浅部成矿，也可随岩浆熔体上升或进入变质带进而参加热液成矿系统。