| 低谷 | dī gǔ | valley / trough (as opposed to peaks) / fig. low point / lowest ebb / nadir of one's fortunes |   |
| 波谷 | bō gǔ | trough | |
| 槽 |  cáo | trough / manger / groove / channel / (Tw) (computing) hard drive | |
| 潋 | liàn | full of water / trough | |
| 澰 | liàn | full of water / trough | |
| 三马同槽 | sān mǎ tóng cáo | three horses at the same trough (idiom, alluding to Sima Yi 司馬懿|司马懿[Si1 ma3 Yi4] and his two sons) / conspirators under the same roof | |
| 水落归槽 | shuǐ luò guī cáo | spilt water returns to the trough (idiom) / fig. people remember where they belong | |
| 牛骥同槽 | niú jì tóng cáo | cow and famous steed at the same trough (idiom) / fig. the common and the great are treated alike / also written 牛驥同皂|牛骥同皂[niu2 ji4 tong2 zao4] | |
| 牛骥同皂 | niú jì tóng zào | cow and famous steed at the same trough (idiom) / fig. the common and the great are treated alike | |
| 饲槽 | sì cáo | feeding trough | |
| 槽头 | cáo tóu | feeding trough in stable | |
| 轧染 | yà rǎn | to roll used in dyeing trough | |
| 轧染机 | yà rǎn jī | pressure roller used in dyeing trough | |
| 低压槽 | dī yā cáo | trough line | |
| 海槽 | hǎi cáo | trough line | |
| 马里亚纳海槽 | mǎ lǐ yà nà hǎi cáo | Mariana trough | |
| 冲绳海槽 | | Okinawa trough | |
| 槽形低压 | | trough line | |
| 赤道槽 | | equatorial trough | |
| 浪谷 | làng gǔ | trough of a wave / (fig.) low point / lowest level | |
