权威例句
Case-hardeningCasehardeningCasehardeningHeat TreatingHeat TreatingOxygen boost diffusion for the deep-case hardening of titanium alloys ☆Surface roughness model for end milling: a semi-free cutting carbon casehardening steel (EN32) in dry conditionBiofilms and case hardening on sandstones from Al‐Quwayra, JordanCase hardening of sandstoneFirst prize deep case hardening of titanium alloys with oxygenFatigue properties of two case hardening steels after carburizationEFFECT OF DEEP COLD TREATMENT ON TWO CASE HARDENING STEELSAlternating current potential-drop measurement of the depth of case hardening in steel rods
