喷混凝土锚杆支护
Shotcrete bolt support
以上为机器翻译结果，长、整句建议使用 人工翻译 。
虽然近几年来已成功研制了各种可伸长锚杆，但锚喷支护中混凝土喷层研究仍未有明显突破。
Although it has success development different producibility bolt in last few year, concrete spraying research have not the obvious break through in anchor spray support.
youdao
应用推荐
模块上移
模块下移
不移动