English translation for "洞口保护"

opening protection

Related Translations:

洞口:  entrance to a cave

洞口钢筋:  trimming bar

洞口开挖:  portal-in

垂直洞口:  vertical opening

墙洞口:  wall opening

平洞口:  adit collaradit openingadit portal

洞口尺寸:  dimension of opening

导洞口:  heading collar

流线型洞口:  enlarged culvert inlet

洞口定位:  location of adit

Example Sentences:

1.

S was on his bed . it seemed to him that thus he better guarded the unfinished opening 他觉得这样似乎可以把那未挖成的洞口保护得更严一点。

Similar Words：

"洞空洞" English translation, "洞孔高低杠" English translation, "洞孔雪面" English translation, "洞口" English translation, "洞口, 桥门, 桥门架" English translation, "洞口侧壁" English translation, "洞口尺寸" English translation, "洞口定位" English translation, "洞口钢筋" English translation, "洞口开挖" English translation