The use of special materials with highest durability is one of the main requirements for the production of pressurized instrument parts.
使用特殊材料获得最高的耐久性是受压仪器零件生产中主要的需求之一。
The abrasion of metallic parts and fire-resistant materials for circulating fluidized bed (CFB) boilers is one of the main causes of operation failures.
循环流化床锅炉中金属部件及耐火材料的磨损是造成其运行事故的主要原因之一。
Note: The main spare parts and sealing-ring materials of ball valve series can be designed for Options as per real working conditions and users special reauirements.
主要零部件及密封圈的材质亦可根据实际工况条件或用户特殊要求设计选用。
There is a high requirement for the derrick substructure of the ultra-deep well in structural form, layout of component parts and main materials.
超深井钻机井架底座在结构形式、构件布局、主体材料的选取等方面均有较高要求，常规的井架、底座主体材料难以满足超深井钻机特定的载荷和工况要求。
There is a high requirement for the derrick substructure of the ultra-deep well in structural form, layout of component parts and main materials.
超深井钻机井架底座在结构形式、构件布局、主体材料的选取等方面均有较高要求，常规的井架、底座主体材料难以满足超深井钻机特定的载荷和工况要求。
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