詞語：backsight
backsight的解釋
backsight['bæksait]n. [測繪]後視；表尺缺口
backsight的意思
backsight 回視;反覘;過天頂測天 瞄準器;表尺缺口;backsight method 後視法;backsight point 後視點;
backsight的參考例句
1.Can force of eye laser backsight drop? 眼睛激光後視力會下降嗎?
2.Chronic and toxic can have ball backsight neuritis, inspect dish of oedema, retinal hemal convulsion, haemorrhage, oozy, eye shot is short of caustic and centrality stricture. 慢性中毒可有球後視神經炎，視盤水腫，視網膜血管痙攣、出血、滲出，視野缺損和向心性狹窄。
3.9 see joke: "Had said how many times with you, the car backs a car when backsight line is undesirable, must somebody directs ability travel, see you, hit enclosing wall again collapsed!" 9看笑話： 「跟你說過多少遍了，車後視線不良時倒車，必須有人指揮才行，看你，又把圍牆撞塌了！」