Rotating components, like shafts, and the supporting features like bearing housings, are good examples of features that must ...
Alert: The highly destructive invasive ‘shothole borer’ beetle has arrived in Santa Clara County
The shothole borer is a small beetle that can kill an entire tree by boring round holes the size of the tip of a ballpoint pen into a tree’s bark. A beetle is shown in an entry hole above. Photo by ...
China has developed its largest tunnel-boring machine, Jianghai, with a 54.4-feet diameter and 30% increased tunneling ...
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