excavating face的用法和樣例：
例句
- When the swelling areas between two cutters are superimposed, the deformed rocks are separated from the face.
當相臨刀具誘發的隆起區重疊時，岩石便以碎塊的形式脫離掌子面。 - Tunnel refection seismology employs sources and receivers that are mounted inside the tunnel wall or tunnel face and aims to predict rock properties ahead of the tunnel.
摘要隧道反射地震法是利用放置在隧道邊牆或者掌子面內的震源和接收器，來預測隧道前方的岩石特性。
