Additional ISO documents provide TPM design principles, structures and commands.
附加的ISO文档提供了TPM设计的原理，结构及指令。
The regulation specifies the principles, contents, detailing and material requirements, design value of concrete cover depth, crack width limiting, additional anti-corrosion measures and test methods.
规定了混凝土结构耐久性设计的原则、内容、结构构造和材料选用基本要求、混凝土保护层厚度设计值、裂缝宽度限值等，并给出了防腐蚀附加措施及试验方法。
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