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| English | Chinese |
| parallel straight dune | 赛夫沙丘 |
| parallel straight dune | 纵向沙丘 (三个术语同义，为风成线形沙垄，垄长大大超过垄宽、两侧有滑落面，顺垄向移动) |
| parallel straight dune | 平行直线沙丘 |
| straight-billed earthcreeper | 直嘴爬地雀 |
| straight line equation | 直线方程 |
| straight river | 顺直性河流 |
| straight slope | 直线坡 (沙丘迎风坡脚至背风坡丘檐呈一直线) |