核心服务将提供材料可靠性鉴别。
The core services will provide Positive Material Identification.
它毕竟是一个简单的球窝关节；它有一定的载荷；它在有限的生命中需要可靠性；它必须包含适合工作环境的材料。
It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment.
应当记住，新材料的性能和可靠性很少像现有材料那样为人们所了解。
Must remember that, the new material performance and the reliable very few pictures materials on hand such understood for the people.
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