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The ingredient proportion of concrete poured by pump is determined, according to the capacity of the pressure pump the appropriate pumps are chosen and a suit of pressure pouring techniques is established.

确定了钢管内送混凝土合适的配合比,结合混凝土输送的压注能力,选择合适的送机械,制定出一套完整的压注工艺。

The velocity distributions and the surface pressure distributions of rotor blades and stator blades are acquired, furthermore, the efficiency and the thrust of the pump-jet propulsor are calculated, to lay foundation for the design and the optimization of pump-jet propulsors.

获得了喷射推进器转子叶片和定子叶片上的速度分布及其表面压力分布,并由此计算了喷射推进器的效率和所产生的推力,为喷射推进器的设计及其优化打下了基础。

The research work presented in this dissertation focused on developing the scheme and techniques of OPCPA. This dissertation gives the results of the theoretical and experimental investigation on OPCPA scheme. The validation of OPCPA at high energy level was demonstrated successfully. And some important results were achieved. Several key techniques related to developing table-top ultra-intense and ultra-short OPCPA laser system were put forward, for example, the generation of femtosecond seeding pulses, the precisely temporal synchronization of the pump and signal pulses, the pulse stretching and recompression, the OPCPA process with high energy conversion efficiency and etc. Based on the integration of these key techniques, a 1.46-TW/153-fs OPCPA table-top ultra-intense and ultra-high laser system has been developed, which, to the best of our knowledge, has generated laser pulses with the shortest pulse duration and the highest peak power among the joule level OPCPA systems in the world.

本学位论文工作主要是瞄准 OPCPA 这一国际上提出不久并处于初级阶段的新概念,重点开展了 OPCPA 新原理的理论模拟、实验验证,以及基于 OPCPA 新原理的小型化超强超短激光系统的研究与发展,创造性地解决关键科学技术问题,建立并发展相关关键科学技术,如超短脉冲种子源的产生、小型化强激光浦源的研制及其脉冲的整形、信号光与浦光的精确同步、高效率光学参量放大及高保真脉冲展宽与压缩等关键技术,并在单元技术的总体集成方面取得了重大创新性进展与突破性研究成果,获得了国际上高量级浦条件下 OPCPA 激光研究中峰值输出功率最高且脉冲宽度最短的总体领先结果。

B. The single-acting triplex pump has three pumping actions per pump cycle.

B。 三缸单作用每个周期有三个出作用。

Study of a solar constant current controller

往复和注射均属于恒流

Based on the geometry and motion chamacteristics of hydraulic end in eccentric and squirmy rotor pump, the stress and restriction condition of rotor during the squirmy process were analyzed. According to the design parameters of eccentric and squirmy rotor pump, the load and restriction condition at six operating points were calculated and anaized.

针对偏心蠕动式转子液力端的几何结构及运动特性,分析了转子平面蠕动运动过程中的受力以及约束情况,并结合偏心蠕动式转子实际设计参数,计算和分析了工作过程中的6个工况点的载荷和约束。

Guangzhou Pump , Grundfos NSBasic, is a single-stage impeller and the two-stage impeller of the small end of the stomach pump , it has a cast iron pump , composite materials or cast ...

广州易贸易有限公司,格兰富NSBasic,是单级叶轮与双级叶轮的小型端胃,它具有的铸铁,复合材料或铸。。。

Stomach Pump : Pulse Pump Suction Pump : oil-free lubrication pump gastric lavage flow: red ≥ 2L/min, smoking ≥ 2L/min Liquid Storage bins: 5000mL × 2 machine input power: 130VA Noise:≤ 55dB gastric lavage Type: manual, automatic control automatic control red smoke ...

洗胃结构:脉冲水吸痰结构:无油润滑洗胃流量:冲≥2L/min,吸≥2L/min 贮液桶:5000mL×2 整机输入功率:130VA 噪音:≤55dB 洗胃形式:手动、自控自控冲吸。。。

Stomach Pump : Pulse Pump Suction Pump : oil-free lubrication pump gastric lavage flow: red ≥ 2L/min, smoking ≥ 2L/min Liquid Storage barrel: 5000mL × 2 machine input power: 130VA Noise:≤ 55dB gastric lavage Type: manual, automatic control automatic control red smoke ...

洗胃结构:脉冲水吸痰结构:无油润滑洗胃流量:冲≥2L/min,吸≥2L/min 贮液桶:5000mL×2 整机输入功率:130VA 噪音:≤55dB 洗胃形式:手动、自控自控冲吸。。。

The stuffing box is the kernel hermetic component of the high pressure reciprocating pump .

填料函是高压往复的密封部件,改进前,填料函与体连接处榫面上频繁发生断裂的现象直接影响了高压往复的运行寿命。

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I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。

Ah may dee:You are chinese living in a democratic country.

你是居住在民主国家的中国人吧。