effective depth of penetration有效: effective; valid; efficaciou ...熔: melt; fuse; smelt透: penetrate; pass through深度: degree of depth; depth熔透深度: depth of fusion; depth of penetration下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:有效熔透深度，即可在微信中查询翻译
