单词	坑壑
释义	坑壑 kēng hè土坑水沟。
随便看	photon technology photon temperature photontheory photon theory photon therapy photon thherapy photon time of flight photon tof photon TOF photon TOF information photon toftime of flight photon TOFtime of flight photon torpedo photon transition Photon transport photon transportation photon trapping photon treatment photon tunneling effect photon tunnelling photonuclear photonuclear absorption photonuclear activation analysis photonuclear cross-section photonuclear data center