消息来源：美国商务部上周下令多家芯片设备公司停止向中国大陆第二大芯片制造商华虹集团（Hua Hong）发运部分设备。（Karen Freifeld/路透社）

Sources: the US Commerce Department last week ordered multiple chip equipment companies to halt some shipments to China's second-largest chipmaker, Hua Hong (Karen Freifeld/Reuters)