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Upper deck hatch covers to be of hydraulic hinged steel weathertight type, side coaming of hatch cover to be 1900mm in height.

上甲板货舱盖为液压铰链式钢质风雨密货舱盖。舱口围板侧板高度约为1900mm。

Through process analyzing and algorithm design for the movement of four-component system using method of differential coefficient, the problem of hard finding the maximum force position of the piston-staff by hydraulic pressure traditionally was solved.

采用微分思想对四构件系统的运动过程进行了分析和算法设计，解决了传统方法难于确定液压缸活塞杆最大受力位置的问题。

Belong to these two categories, long-term use of the buildings, known as the permanent hydraulic structures; others only during the construction period of time to play the role of buildings, such as the cofferdam and diversion tunnel.

属于这两类，长期使用的建筑物，被称为永久性水工建筑物，其他人只在施工期间的一段时间内发挥作用的建筑物，如围堰和导流洞。

The paper researches on rise and fall control system trouble reason for down coiler , put forward the improvement measure for hydraulic system.

该文分析了卸卷小车升降控制系统中出现的故障原因，提出了液压系统的改进措施。

From the early days of 1970's,It began to produce large and middle presses which including J21,J23,J25,J31 and J36 presses,hydraulic block machine,the production line for concrete colorable tiling,pressing for auto parts and the other.

主要生产J21、J23、J25、J31、J36系列机械压力机，液压数控冲模回转头压力机，高速机械压力机，冲压自动化生产线，以及混凝土砌块成型机，彩色混凝土屋面瓦生产线，汽车冲压件等产品。

On the basis of theoretical analysis in comminution effect of the grains compressed by hydraulic pressure when it is released, this paper makes the experimental research on coal grains.

通过对受一定静水压力的物料颗粒压力突然释放后粉碎效应的理论分析，提出了利用压力释放效应对煤进行超细粉碎的设想，并进行了实验研究。

According with 7th edition of API 610 standard, the performance and scope of application of chemical process pumps of model ZA and ZE are introduced, including series specifications, structural characteristics, hydraulic characteristics, and auxiliary system of common mechanical seal.

依据API 610第7版标准，综合介绍了ZA型、ZE型化工流程泵的性能和使用范围；阐述了其系列规格、结构和特点以及水力特性；详细介绍了常用的适用于介质端密封、串联密封和双端面密封结构型式的4种机械密封辅助系统。

It is necessary to study the unsaturated hydraulic conductivity of densely compacted bentonite under the confined conditions.

因此，有必要研究侧限状态下高压实膨润土的非饱和渗透性能。

When designing model YZ2003 vibratory compactor, heat dissipating system was tested and researched in order to get best cooling for engine water and hydraulic oil of the machine.

在进行YZ2003型振动压路机设计时，为使发动机水温和液压系统油温都获得最佳的冷却，对该机的散热系统进行了试验研究。

The transfer function model of this valve is got, and the influence of these compensative restrictors to electro-hydraulic servovalve is analyzed.

建立了电液伺服阀的传递函数模型，分析了补偿节流器液阻对阀特性的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。