查询词典 ballast

There bilge pumps, ballast pumps, fire pumps, water pumps daily, daily sea-water pumps, hot water circulating pump; also double as ballast, fire fighting, bilge pumps with a common pump.

有舱底水泵、压载水泵、消防水泵、日用淡水泵、日用海水泵、热水循环泵；还有兼作压载、消防、舱底水泵用的通用泵。

This paper describes the characteristics of the construction technique of floating plate ballast bed for subway at home and abroad and sums up the experience for the reference to the similar construction technique based on the construction technique of floating plate ballast bed with continuous-casting in place-metal elastic buffer in a double-tracked horseshoe-shaped tunnel of Shengzheng subway.

本文通过对深圳地铁一期工程单洞双线马蹄形隧道内，连续-现浇-金属弹簧隔振器式浮置板道床施工工艺的阐述，同时综合国内外地铁浮置板式道床施工工艺特点，总结了一些经验和认识，以供类似工程施工借鉴。

To effectively control the spread of halobios by discharging ballast water, in February of this year, the IMO issued the Vessel Ballast Water and Sediment Control and Management Conventions with strict criteria for discharging ballast water. Many major shipping countries also strengthen their management over ballast water.

为了有效控制船舶压载水排放导致的海洋生物入侵性传播灾害，国际海事组织于今年2月通过了《船舶压载水及沉淀物控制和管理国际公约》，制定了严格的压载水排放标准，许多航运大国也加强了对压载水的监管力度。

The biological pollution of the non-indigenous organisms via ballast water was discussed in details, then some kinds of ballast water treatment measurements which have been in use or being investigated now were introduced, the research developments of the heat treatment of ballast water by marine engine's cooling water was presented particularly.

文章对由压载水引起的外来生物污染问题进行了较详细的阐述；之后介绍了目前已经应用或正处于研究中的各种压载水处理方法，并详细介绍了船舶冷却水加热处理压载水的研究动态。

Used the finite element method computation pipe network resistance thus obtains the ballast water system the line pressure distributed situation. The paper also has carried on the computation to the ballast tank hydraulic loss and has provided the theory basis to the ballast pump optimized design. The overpressure to the ballast tank has been carried on the discussion. The paper also gets the function between the rated flow and the rated pressure of the pump on ships whose BW pipe net is uniform and line is different, which provides a new method for the selection of BW pump.

文章重点讨论了船舶压载水系统的水力计算，使用有限元法计算管网阻力从而得到压载水系统的管路压力分布情况；文章还对压载舱的水力损失进行计算，对压载水泵的优化设计提供了理论依据；文章还对压载水舱过压问题进行讨论；文章对压载水系统相同而航线不同的船舶，利用最小二乘法得到其压载水泵额定流量和额定压头之间的函数关系，为压载水泵的设计和选型提供了新的方法。

This paper discusses the construction technique and method for ballast bed on high speed railway based on the tests of ballast bed laying on Xi an-Ankang railway line,and sleeper laying ballast laying on Beijing-Jiulong louble line.

本文通过西康铁路道床摊铺试验和京九线复线铺枕、铺轨后道床分层补碴 MDZ机组作业试验，对高速铁路有碴道床施工工艺、施工方法等进行了探

Mark ballasts "Class P" indicating approved integral ballast protection. This ballast protection is provided by a built-in self-resetting thermally actuated device that will remove the ballast from line when excessive ballast temperature is reached. See 1.07.F regarding nuisance tripping test data.

镇流器上有经过核准的&Class P&保护标志，镇流器保护是一套热激发自动启动装置，当镇流器的工作温度超过额定温度时可以将镇流器从供电回路中切断，请阅读1.07过载试验数据。

DALI interface can be added to a dimming ballast by using ST7DALI. ST7DALI receives command from DALI and sends it to ballast. It also sends actual status of ballast to DALI master.

它接收并解释来自DALI的命令，以此控制电子镇流器的工作状态，同时在需要的时候将镇流器的实际工作状态发送给DALI主机。

Discharging ballast water with compressed air needs not to install ballast water pump unit that is necessary for pump discharging and simplifies ballast water pipeline system, reduces ship weight, improves the variable loading capacity of marine platform and finally promotes economic benefits.

采用压缩空气来控制与调节半潜式海洋平台或工作船舶的上浮及下潜，是借鉴潜水艇沉浮原理而设计的一种新型压载水排放模式，使用压缩空气排放压载水，免除了使用水泵排放所必须安装的压载水泵组并简化了压载水管系统，减少了船舶的自重，提高了海洋平台的可变载荷量，提高了经济效益。

This paper has introduced that structure of inductance ballast of the gas discharge lamp and structure and performance of electronic ballast, has given some examples for applying the electronic ballast and has compared parameter change and light efficiency of inductance ballast with which of electronic ballast when voltage of electric power net changes.

介绍了气体放电灯电感式镇流器和电子式镇流器的结构特点、性能特点及电子镇流器的应用举例，并对两种镇流器电网电压变化时的参数变化、发光效率等进行了对比分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。