After all, there came an experimental study on modification of wall filled with stone ballast block.
经过近两年的研究，石渣砌块改性初见成效。
Even rock tools in use by heavy bump, not fresh out of stone ballast it up, but not as metal tools, as a result of deformation and destruction of accuracy.
在使用中岩石工具即使遭重物磕碰，至多掉几粒石碴而已，而不会像金属工具那样，因变形而破坏精度。
Even rock tools in use by heavy bump, not fresh out of stone ballast it up, but not as metal tools, as a result of deformation and destruction of accuracy.
在使用中岩石工具即使遭重物磕碰，至多掉几粒石碴而已，而不会像金属工具那样，因变形而破坏精度。
应用推荐