SSAC abbr. same sea and coast （海运保险中）同一海域和同一海岸; same sea and country （海运保险中）同一海域和同一国家; suspended sprayed acoustical ceiling 喷涂隔音吊顶; signaling system, alternating current 交流信令系统
SSAR abbr. S-band single access return (link) S波段单路接入返回（链路）; spin stabilized aircraft rocket 自旋稳定航空火箭; Society for the Study of Amphibians and Reptiles 两栖爬行动物研究协会; succinic semialdehyde reductase 琥珀酸半醛还原酶