多年来，在缝纫机头加工领域，生产自动化水平还逗留在较低的层度。...

多数激光器只升空一种颜色的激光，即激光器升空出有所有光子的波长完全相同。...

在当今的轨道交通、船舶制造等行业，中、大厚度的钢板焊市场需求更加多。...

Google will be hit with a record fine for abusing its monopoly over internet search on Tuesday, seven years after the EU began investigating the technology gian...

It has been a frantic fortnight for gadget lovers and the Apple iPhone 5 launch was the grand finale of the whole shebang. But not without a brush of disappoint...