查询词典 ballast

Ballast manifolds shall be equipped with not immersed shut off valves separating the system in three sections each one separately connectable to the suction and delivery manifolds of each one of the two pumps and to the sea chests.

压载总管应配有不会被浸到的截止阀，截止阀将系统分割为独立的三段（左舷段、中部段和右舷段），每个截止阀都可独立地与吸口相连并可将两台泵中的任何一台的总管输送到海底门。

The fluorescent lamp ballast circuit used MSC60028 with higher power factor is developed,and the system consists of control circuit,boost circuit and contravariant circuit.

开发了一种采用MS C60028 集成功率因数校正芯片构成的高功率因数日光灯镇流器，整个系统由控制电路、升压电路、逆变电路三部分组成。

The rectangle shaped member mentioned by this article is a prefabricated one for the internal construction of circular tunnel, and is located along tunnel axis line, to be lifted into place by a dedicated crane onboard the shield machine in synchronised manner, followed by placement at both sides of tunnel, of ballast block, or in-situ cast members, corbel, pavement slab and the like.

由于隧道比较长，为节约工期，在盾构机推进的同时，隧道的内部结构也跟进施工，本文所叙述的口字型构件是圆隧道内部结构中的预制构件，它位于圆隧道的中心轴线位置，在同步施工中由盾构机上的专门起重机吊放入位，再于两侧施工压重块、牛腿、路面板等现浇结构。

In this paper, some approaches are made to adjust the track irregularity of integrated ballast bed by using the cubic spline for function curve fitting, and the method of how to reduce the maintenance under the premise of ensuring track profile smooth has been put forward.

用三次样条函数对调整整体道床轨面进行探讨，提出在保证轨面平顺的前提下，减小轨面调整作业量的方法。

The first chapter the content examines including the orbital intensity calculated that reserves the axle seam the computation, in the curve reduces axle's arrangement, the axle festival general arrangement plan, the railroad ballast amount used computation, designs the road section and the station yard cubic meter of earth and stone quantity calculates as well as mixes, railroad cubic meter of earth and stone and orbital project construction organization and budget.

第一章内容包括轨道强度检算，预留轨缝的计算，曲线上缩短轨的布置，轨节布置图的绘制，铁路道碴用量的计算，设计路段和站场的土石方量计算以及调配，铁路土石方和轨道工程的施工组织及预算。

The train is treated as multi-body system, and its dynamic equations are derived using the D\'Alembert principle. The rail structure is modeled as discrete-supported three-layer system considering the degrees of rail, sleeper and ballast.

车辆为多刚体系统，采用D'Alembert原理建立其动力方程；轨道结构采用考虑钢轨、轨枕、道碴自由度的三层点支承模型；采用有限元法建立桥梁动力分析模型。

To these two types of BFP, the new schemes of towing and submergence were put forward: Type A BFP, added buoyancy with detachable cone-shaped pontoons, can be towed directly, and the self-ballast mooring submergence method can be applied into its submergence process. Type B BFP can be towed with the tied pontoons, and the submergence method is davit launch.

针对两种桶形基础平台海上作业的特殊需要，提出了新的拖航与沉放方案：A型平台由可拆卸的锥形浮筒提供浮力直接拖航，并采用自身压载系泊沉放法沉放到海底；B型平台采用绑缚浮筒拖航，吊放至海底。

Its performance,structure,working principle and circuit diagram are introduced.The DC daylight lamp electric ballast is recommended to use.

并推荐采用进口IC厚膜电路生产的、适合各种车型选用的客车用直流日光灯电子镇流器。

Supervision over and inspection of the disposal of garbage, waste water , human deject and ballast water .

4监督和检查垃圾、废物、污水、粪便、压舱水的处理。

Supervision over and inspection of the disposal of garbage, waste water, human deject and ballast water.

4监督和检查垃圾、废物、污水、粪便、压舱水的处理。可以套印计划单列市税务局全国统一发票监制章。

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。