Excavators are used to unearth, transport, and unload materials with the help of a bucket fitted to a boom. They move on crawlers or wheels. Excavators are versatile heavy construction machines used for below- and above-ground operations, including land leveling, trench digging, and well sinking. The excavator market in Russia is one of the steadily growing construction equipment markets in EMEA and will post a CAGR of 6.54% during the forecast period. The mega events planned to take place in Russia will accelerate market growth.

关键词：挖掘机；挖掘；运输；装卸材料；多功能；重型工程；俄罗斯市场；建筑设备市场

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Cryogenic freezers are used for storing DNA, tissues, blood products, stem cells, umbilical cord blood, oocytes and embryos, and sensitive medical and biological specimens. These operate on specialized mechanical systems or liquid nitrogen. Cryogenic freezers minimize the level of deterioration of samples as they operate at extremely low temperatures of about -150°C. At this temperature, the molecular motion of water ceases, putting cells in suspended animation and rendering them suitable for preservation.

关键词：低温冷冻机；存储；DNA；组织；血液制品；机械操作系统；

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In the oil and gas industry, pressure vessels — called separators — are used to segregate well streams into liquid and gaseous components. Separators are used in a range of applications, including on-site primary separation and refinery process separation. The main types of separators are horizontal, vertical, and spherical; these can be further divided into two groups based on the fluids to be separated, namely, oil/gas/water three-phase separators and liquid/gas two-phase separators. Based on application, separators can also be classified as primary-phase separators, test separators, low-pressure separators, high-pressure separators, degassers, or deliquizers. Separators are usually designed in three stages to meet the specific requirements of a project.

关键词：石油；天然气；压力容器；隔离；初级分离；精炼过程分离；水平；垂直；球形

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Atherectomy devices are used to remove atherosclerotic plaque to clear blocked blood vessels. Atherosclerotic plaques are deposits of fats, calcium, or other substances inside the blood vessels. Removal of these is an endovascular procedure for the treatment of PAD and CAD. PVD refers to damaged or blocked peripheral blood vessels that supply blood to the arms, legs, and organs other than brain and heart. PAD, which is PVD of the arteries, is known to increase the risk of stroke and heart attack by up to six fold. CAD is a condition in which there is narrowing of the arteries that supply blood to heart muscles. Stents, balloon catheters, and atherectomy devices are used in endovascular procedures to treat PVD. Thrombectomy devices are used to surgically remove thrombi (clots) from blood vessels during the treatment of DVT. A DVT is a blood clot formed in deep veins in the body, mainly in the leg. The risk of developing these vascular diseases increases with age. Diabetes, high blood pressure, obesity, and smoking are other risk factors of these diseases.

关键词：动脉斑块；旋切术装置；消除；粥样硬化斑块；疏通堵塞；血管内手术；PAD；CAD

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Compressors convert mechanical energy into pneumatic energy through compression. Pistons, vanes, and other mechanisms are used to compress air and gas, by increasing the pressure from initially lower pressure to higher pressure. Both compressed air and compressed gas are used for various purposes in the manufacturing, petroleum, chemical, power, mining, food and beverage, pharmaceutical, and medical industries. Compressors can be categorized into several types based on functionality and design. However, the major types of compressors are PD and centrifugal gas compressors.

关键词：压缩机；转换；气动能量；功能；设计；PD；离心式气体

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Cardiac arrhythmias are characterized by an abnormal heart rhythm, which involves the heart beating at over 100 beats per minute, less than 60 beats per minute, or irregularly. Arrhythmias occur because of the improper functioning of the electrical systems regulating the heartbeat. Arrhythmias are of various types, including atrial fibrillation (or AF), atrial flutter, and atrioventricular nodal re-entrant tachycardia. Symptoms of arrhythmias include tremulous feeling or pain in the chest, shortness of breath, fatigue, dizziness, or fainting.

关键词：心律失常；异常心脏节律；电气系统；心房纤维性颤动

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Pumps are mechanical devices that aid in the circulation of fluids and slurries to facilitate mechanized operations. Rotary, reciprocating, and peristaltic pumps are the main types of positive displacement pumps. In rotary pumps, the pumping action takes place as a result of rotary motion, wherein the liquid to be displaced moves in a circumferential pattern inside the pump.

关键词：泵；泥浆循环；机械设备；旋转式；正排量泵；

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Pumps are mechanical devices that transfer fluid from one place to another. These devices use electricity, wind power, and engines as energy sources. They are used in the agriculture, water and wastewater, power generation, mining, chemical processing, hydrocarbon processing, food and beverage, oil and gas, pulp and paper, and aerospace industries.

关键词：泵；机械装置；风力发电；发动机；航空航天

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Every year 10 million people suffer from traumatic brain injuries worldwide, of which three million people are affected in the US alone.

关键词：外伤性脑损伤；CMF；颅颌面外科

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Dairy processing equipment utilizes dairy processing technology and systems in techniques such as homogenization, blending, pasteurization, and filling for manufacturing dairy products.

关键词：乳制品加工；乳品工艺；工艺设备

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