| 洛杉矶烟雾 Los Angeles type smog |
| 洛氏硬度 Rockwell hardness |
| 洛氏硬度值 Rockwell hardness number |
| 洛氏硬度计 Rockwell apparatus |
| 洛氏硬度试验 Rockwell hardness test |
| 洛炎 Luo Yan |
| 洛阳 Luoyang yang,the masculine o... |
| 洛阳纸贵 Paper becomes expensive in L... |
| 洞 hole |
| 洞中洪水 backflooding |
| 洞中肯綮 hit the nail on the head |
| 洞卡装置 hollerith system |
| 洞口 entrance to a cave |
| 洞壁干扰 wind tunnel wall interferenc... |
| 洞天福地 blessed spot |
| 洞子 greenhouse cave |
| 洞察 see clearly |
| 洞察一切 have a keen insight into mat... |
| 洞察下情 fully perceive the feelings ... |
| 洞察其事 look into the matter |
| 洞察其意 penetrate one's design |
| 洞察力 insight |
| 洞察情势 make a thorough investigatio... |
| 洞察是非 see clearly the rights and w... |
| 洞察未来 see into the future |