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hardening ['hɑ:dnɪŋ] n
comp., MS	强化 (The use of physical and firmware modifications that make the hardware more difficult to alter without damaging the hardware. These modifications can also prevent hacking that can disable the metering of a prepaid or subscription computer)
English thesaurus
harden [hɑ:dn] abbr.
abbr., met.	h.
IT	To configure a computer or other network device to resist attacks

hardening: 2 phrases in 1 subject

Microsoft

2