vertical advance的意思|示意

Minitype steel pipe piles are installed for advance support in vertical digging segment.

在垂直开挖地段布置了微型钢管桩进行超前支护。

In the piano teaching, teachers ought to help their students to achieve a good ground of hearing training, let them to advance their hearing in both "vertical" and "horizon".

在钢琴教学中，教师首先要帮助学生打好音乐听觉训练的基础，要时刻注意从音响的“纵”“横”两个方面来提高听觉能力。