查询词典 transmission efficiency

The smooth operation of such valves, transmission, high efficiency, inverter control can be realized.

此类阀门的运转平稳，输送效率高，可实现变频控制。

This paper aims at enhancing the machining efficiency of transmission case.

本设计旨在提高X5020B立式升降台铣床变速箱的加工效率，由此我们首先对变速箱体的结构和工艺进行了仔细的分析，然后确定了一套合理的加工方案对其进行加工。

AMC selection module periodically measures the wireless channel, updates the state transition matrix of finite-state Markov chain to trace the channel status, and dynamically selects transmission mode, which includes modulation and forward error coding, so as to guarantee packet error rate performance and improve spectrum efficiency.

AMC选择模块周期性地测量无线信道，更新马尔可夫模型转移概率矩阵以跟踪当前的信道特征，动态选择物理层传输模式（包括调制方式和前项纠错编码方式），在保证系统误包率要求的同时，最大可能地提高系统频谱效率。

The crawler and swing arm both are driven by DC servo motor directly, the complex driving devices are eliminated, swing arm drive DC servo motor is installed in the interior of driven wheel and swing arm wheel; it ensures robot has high maneuverability and strong over-obstacle capability, at the same time it overcomes the disadvantages of traditional drive and transmission system, such as a lot of elements, complex structure and low efficiency, it reduces energy consumption, saves interior space, reduces overall weight, increases the work reliability and running stability of robot and provides new design programs and new technology channels for small-sized crawler ground movable robot drive device.

机器人的履带和摆臂均由直流伺服电机直接驱动，省去了复杂的传动机构，摆臂驱动直流伺服电机则安装在从动轮和摆臂轮内部，在保证机器人具有高机动性和强越障力的同时，克服了传统驱动、传动系统零件众多、结构复杂、效率低下的缺点，降低了系统能耗，节省了内部空间，减轻了整体重量，提高了机器人的工作可靠性和行驶稳定性，为小型履带式地面移动机器人驱动装置提供了新的设计方案和新的技术途径。

At present, there are drilling more than 150 plants, with an annual output of various drilling about 1 million units, export over 20 million units, the drilling of speed through a pulley shift to resolve the pagoda, the governor need to stop the process, open the protective Enclosures, manual transmission, and other procedures, the process cumbersome and poor security, and is governing, not transferred to the spindle speed corresponding to the different materials of various aperture drilling at the best speed, the production efficiency is low.

目前，全国有钻床厂150多家，年产各种钻床100万台左右，出口20多万台，这些钻床的变速都是通过一对宝塔皮带轮换档解决的，调速过程需要停车、打开防护罩，手工换档等程序，操作过程繁琐且安全性差，并且是有级调速，不易使主轴转速调到对应于不同材质的各种孔径钻削时的最佳转速，因此生产效率也低。

The requirements for lasers,optical setups,recording ma terials and chemical processing to make large-format holograms of great scenes are discussed.A model of Suzhou Industrial Park measuring 160×180cm,and other large models were recorded using an argon ion laser with an etalon on self-prep ared ultra-fine-grain silver halide plates(average grain size:20nm).Large-for mat transmission holograms (size:50×40cm) of high diffraction efficiency and lo w noise level were obtained with proper exposure and chemical processing.

分析了制作大幅面大场景激光再现全息图对激光器及光路布置、记录介质、化学处理等方面的特殊要求，用自制的颗粒平均尺寸为20nm的超细颗粒卤化银全息干板及带标准具的氩离子激光器，对场景面积达160×180cm的苏州工业园区等模型作全息记录，经适当曝光和化学处理，制得了幅面达50×40cm，且具有较高衍射效率和较低噪声的透射全息图。

Keywords economical NC lathe;vertical machining center;transmission shaft fork;machining efficiency;capital for investment

全功能数控车床；立式加工中心；传动轴节叉；加工效率；投资费用

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。