At present, YD series electric slow cooker except the ceramic liner may be heating power, but also on the heating in the fire, but also more resistant to burning.
目前，YD系列电热慢炖锅其陶瓷内胆除了可用电加热外，还能在火上加热，而且又较耐烧。
Ceramic liner and plunger, in particular, have been used widely in many domestic oil fields and exported to international markets, such as North American market, Middle East market.
陶瓷部件产品，尤其是缸套和柱塞已经在国内多个油田使用，产品远销北美、中东等国家和地区。
Mathematical model of multi-layer composite artillery barrel with ceramic liner was built by using axisymmetric elastic theory, and stress computer program of the composite barrel was developed.
应用轴对称弹性理论建立了陶瓷内衬多层复合身管的数学模型，编写了其应力计算程序。
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