专业译文需求 , 试试百度人工翻译 Neutral packing, dust and other dirt products must be cleaned prior to packaging, the packaging process must pay attention to clean, to ensure the quality of packaging. Explosion proof electrical products and power transmission control device shall be covered with plastic bags and then into the packaging box, the outer packaging using simple packaging products, must first use plastic bags. The products in the box must be fixed reliably and should not be moved. Fixed way according to the product structure selected by bolt or in wooden flute (block) tight pressing pad.

The tungsten iridium stream mouth is as a special tungsten alloy with other refractory metals. It mainly uses in rare-earth metal smelting, the induction furnace heating element, the quartz glass smelting and so on, makes the high temperature vessel. In the glass and the ceramic industry, the tungsten class mouth is a ceramic micro production very essential part. The tungsten proportion is big, degree of hardness is big, the heat conduction electric conductivity good, heat-resisting, wear-resisting, anti-corrosive, has the low expansibility and the size stability under the high temperature. The tungsten melting point is highest when all metals (reaches as high as 3380 degrees Celsius), the steam tension to be lowest, the tensile strength is highest (1650°C), and its antiseptic property is good, the majority inorganic acid are very small to its corrosion. Therefore it is ideal to manufacture the heavy alloy. But the tungsten and the iridium make the alloy, its abrasion resistance, degree of hardness, the intensity, the heatproof quality obtained the further promotion, thus has guaranteed the product uniformity well. Is precisely these precious performance, causes it to become now in the high-tech crystal glass industry the indispensable equipment component.