Draw off system water until boiler pressure reads zero.

将系统中的水排出，直到锅炉压力读数降为零。

youdao

The objective is to study the impact of extra water on the immune system in mice.

目的是研究多余的水对老鼠免疫系统的影响。

youdao

Her answer is "the spacesuit is really a small spacecraft with room for food and water containers, and a waste-collection system."

她的回答是:“宇航服其实就是一个小宇宙飞船，里面有放食物和水的空间，还有一个垃圾收集系统。”

youdao

Between thirty and thirty-five women used each system to pump water from the ground or a stream.

VOA: special.2010.01.11

So a closed system would be, for instance, a glass of ice water with an ice cube in it, with the lid on top.

因此闭系可以是，比如说，一杯放了,一个冰块的冰水，顶上加了盖子。

麻省理工公开课 - 热力学与动力学课程节选

The renal system has an equally important function in that way, in maintaining your water balance.

泌尿系统也同样十分重要,它能够维持体内的水平衡

耶鲁公开课 - 生物医学工程探索课程节选

The closure is being implemented to allow a disinfection of the water system and a major refurbishment of the heating and water system.

BBC: Bacteria discovery closes Launceston hospital

The water system provides drinking water for 42 million people and is a defining characteristic of the states and provinces along its borders.

NPR: Governors Meet on Access to Great Lakes

The 59-acre (24 hectare) site will also boast a solar thermal hot water system to pre-heat the water for the heating system, and a biomass boiler that will provide heat using locally-sourced wood chips.

BBC: Bristol and Bath Science Park gets new solar roof panels