heavy condition meaning in English

重载状态

Eletrical installations for outdoor sites under heavy conditions . operating requirements
户外严酷条件下电器装置操作要求
Electrical installations for outdoor sites under heavy conditions - terms and definitions
严酷条件下户外场所电气设施术语和定义
Electrical installations for outdoor sites under heavy conditions - general protection requirements
严酷条件下户外场所电气设施一般防护要求
Electrical installations for outdoor sites under heavy conditions - general requirements for equipment and ancillaries
户外严酷条件下电气装置设备及附件的一般要求