南京直立人(猿人)  auto dialing

直立原人  Pithecanthropus erectus; Homo erectus erectus; Homo ereatus

直立猿人  Pithecanthropus erectus; Homo erectus; pit viper

北京直立人  Homo erectus pekinensis

南京直立人  nanjing ape man; Homo erectus from Nanjing

直立人  Homo erectus

直立原丝体  chloronema

原人猿  Proconsul

祖先原人猿  Proconsul atriconus

半圆顶直立堤  semi-circular erected mixture breakwater

半圆顶直立混合堤  semi-circular erected mixture breakwaters

半直立水工护岸  half-vertical hydraulic revetment

保持直立  keep upright

笔笔直直  bolt upright

长期直立  Long-term upright posture

垂直原型  vertical prototype

垂直直肌  vertical rectus muscles

单人直升机  one-man helicopter

单旋翼涵道风扇式无人直升机  single rotor autonomous helicopter with ducted fan