RF filters restrict signals in the MHz to GHz frequency range, which are received and transmitted primarily by broadcast radio, TVs, and wireless communication devices such as cellphones and tablets. They also help detect signals and process the required information. RF filters are used in numerous applications across the entire spectrum of frequencies. There are four basic types of RF filters

关键词：RF滤波器；接收；发射；检测信号；处理信息

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Level measurement, commonly termed as tank gauging, is an instrumentation technique used to identify the height of the fluid or solid within a containing vessel. Level measurements can be either contact based or non-contact based. Contact-based level measurement can be done mainly through devices such as magnetostrictive sensors, vibratory probes, hydrostatics and magnetic floats, whereas non-contact-based level measurement can be primarily done through ultrasonic, radar, laser, and optical devices. Radar technology is mainly used for the detection of level in continuous level measurement applications. Radar level detectors basically include a transmitter, a receiver, and an antenna. The detector uses electromagnetic waves usually in microwave X-band range, which is around 10 GHz. These transmitters are classified into two broad categories depending on their application: radar level transmitters for ITG and radar level transmitters for process level.

关键词：电平测量；仪表技术；确定；液体或固体；高度

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Laboratory automation is the use of technology and equipment to conduct routine or tedious activities including state-of-the-art workflows in research, quality assurance, and diagnostics laboratories. The automation enables robust and faster throughput and analysis of a large number of samples at one go. Laboratory automation finds primary application in the areas of both clinical testing and drug discovery, wherein the laboratory automation system could either be a standalone system or a total laboratory system.

关键词：实验室自动化；技术；设备；临床试验；药物发现

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Millimeter wave solutions involve the transmission of information or energy through radio waves with wavelengths ranging 1-10 mm. The solutions find applications in mobile backhaul around the world. Their applications at high bandwidth provide the edge over the counterparts for wireless broadband transmission and range. Millimeter solutions offer high data capacity, and improved beam width, enhancing the communications.

关键词：毫米波；解决方案；信息；能量；无线电波传输

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Ostomy refers to a surgically made opening (stoma) in the body for the excretion of waste products such as stools, mucus, and urine.

关键词：造口术；体内外科手术；废物排泄产品；造口术引流袋

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NDT equipment is used to examine or evaluate the properties of an object, material, or system without damaging it. This equipment is used in various applications, including weld verification and structural mechanics, across industries such as Automotive, Aerospace, Oil and Gas, and Power Generation. The Global NDT Equipment market is growing at a steady pace and is expected to grow at a CAGR of 7.92 percent during the period 2013-2018. The majority of the market growth stems from North America, followed by Europe. The production of NDT equipment systems has recently gained momentum because of growing demand for such equipment.

关键词：无损检测设备；检查；评价；材料；系统；特性

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Process analytical instruments, often known as online instruments, are precision engineering equipment used for constant monitoring of numerous parameters during the manufacturing process. They are widely used to analyze and identify the physical, chemical, molecular, and elemental properties of a sample. These instruments are mostly used across several end-users such as the Chemical and Petrochemical, Oil and Gas, and Pharmaceutical and Biotechnology industries.

关键词：过程分析仪器；在线仪器；精密工程；监测；参数设备

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An automated dispensing machine is a type of vending machine used for dispensing drugs and other medical supplies to patients. It is also known as a unit-based cabinet, automated dispensing device, and automated distribution cabinet. Automated dispensing machines allow medications to be deposited and distributed near the point of care while monitoring and tracking drug distribution. Technological advancements in pharmacy automation have led to innovations in dispensing machines such as centralized control and decentralized control methods of operation. Dispensing machines have also helped in elevating patient care and allowing extra time for patient counseling as automation saves pharmacists' time, which in turn encourages them to provide guidance to patients about their medications. Some other benefits of automated dispensing machines include enhanced nurse access to medications, more effective medication billing and inventory control, greater medication safety, and potential reductions in medication errors.

关键词：自动配药装置；自动配电箱；医疗器械；自动点胶机

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针对飞机轴向柱塞式液压泵的工作状态监控问题,提出了一种基于液压泵振动信号分析处理的故障诊断新方法.通过对加速度传感器的原始数据序列进行信号建模,利用粒子数优化后的粒子滤波算法进行降噪；根据滤波后信号的自回归谱提取特征值,结合液压泵的故障机理分析其工作状态,实现对液压泵的故障分析和诊断.实验及仿真结果表明,粒子滤波可有效跟随原始信号并滤除噪声干扰,基于粒子滤波和自回归谱的液压泵故障诊断方法能有效地提取故障特征值,实现故障诊断和识别.

关键词：液压泵；粒子滤波；自回归谱；故障诊断

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Central venous access devices are devices inserted into the central venous system to administer medication or fluids, draw blood, and measure central venous pressure. These devices are made up of a non-irritant material such as silicone so that they can be left in place for several weeks or months. Central venous access devices are recommended when there is difficultly to obtain peripheral venous access or in case of certain intravenous therapies such as chemotherapy, total parenteral nutrition, prolonged medication, repeated transfusions of blood or blood products, and frequent blood sampling. These devices are inserted either by surgeons or interventional radiologists with or without the use of general anesthesia. CVCs, PICCS, and implantable ports are the most common types of central venous access device. The catheter has one end positioned outside the body and the ports are surgically placed under the skin and require a special needle for access. Occlusions are a common complication associated with these devices, which can be thrombotic, mechanical, and precipitate occlusions.

关键词：医疗器械；医疗设备；中心静脉通路装置；中心静脉系统；流体，抽血；测量；中央静脉压力

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