Second, with the advent of the Internet era, network information security has become a hidden danger.
第二，随着网络时代的全面到来，网络信息安全也日渐成了隐患。
The roof abscission layer is the biggest security hidden danger in bolting support tunnel.
顶板离层是锚杆支护巷道最大的安全隐患之一。
Security hidden danger to power, in addition to the flat.
电力安全行，隐患要除平。
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