LDabbr.检漏器(=Leak Detector)abbr.负载(=load)abbr.当地交付(=Local Delivery)LDAP protocol用户认证Ldine - salt碘盐LDO regulators低压降稳压器Ldentification鉴定LD speedometer激光测速仪LD-lanthioineβ-氨基-β-羧乙基硫醚, LD-羊毛硫氨酸LD pumped laser二极管泵浦激光LD-lanthionine硫二丙氨酸, 羊毛硫氨酸ldentifying Code验证码LDH Reagent Strip血乳酸脱氢酶定量测定试剂条