anchor bolt-spray support
... 支护 support 锚喷支护 anchor bolt-spray support 锚杆支护 anchor bolt-support;anchor bolt support ...
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anchor bolt-spray support
锚杆喷射支护
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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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.
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。
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