Here was made an overall introduction to a TYJ-30 disk casting set of copper anode plates and detailed its design characteristics.
本文对TY J - 3 0铜阳极板圆盘浇铸机组进行了全面介绍，并对机组的设计特点做了详细说明。
The introduction of ultrasonic vibration reduces the metal flow resistance and fluid pressure loss, raises the flow speed, raises the welding quality and facilitates welding of thick plates.
超声振动的引入降低金属流动阻力和流体压力的沿程损失，提高流动速度，提高了焊缝质量，也可有效解决厚板焊接困难。
The book contains color plates of rare ceramic artifacts as well as an interesting introduction to the appraisal of ceramics.
文中还穿插了一批陶瓷珍品的图片，浅显有趣地介绍了有关陶瓷鉴赏的知识。
The book contains color plates of rare ceramic artifacts as well as an interesting introduction to the appraisal of ceramics.
文中还穿插了一批陶瓷珍品的图片，浅显有趣地介绍了有关陶瓷鉴赏的知识。
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