By Electronic Gear Box to ensure the strict proportion of the tool shaft and the workpiece.

由电子齿轮箱保证刀具主轴与工件之间严格的定比关系。

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Immigrants account for 19.3% of the country's 7.2m inhabitants, a proportion that is among the highest in Western Europe, and the number is rising steadily despite strict requirements for work permits.

ECONOMIST: Switzerland: Foreign relief | The