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。
This article introduces the concrete method that the equipment of spraying-extraction fermentation renovated from that of low-salt solid-state soy sauce fermentation.
该文探讨了把低盐固态酱油发酵设备改造成浇淋酱油发酵设备的具体方法。
This article introduces the concrete method that the equipment of spraying-extraction fermentation renovated from that of low-salt solid-state soy sauce fermentation.
该文探讨了把低盐固态酱油发酵设备改造成浇淋酱油发酵设备的具体方法。
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