Its keyboard includes a 10-key number set on the right, like that found on most desktop keyboards.
其键盘右侧有与大多数台式机键盘类似的、10个单独的数字键。
Based on the number set, a new commutative semi-group is established in the integer number and extended in number fields of rational number, real number and the complex number.
在数集的基础上，在整数域上建立了一个新的交换半群，并在有理数域、实数域和复数域上进行了推广；作为应用，讨论了其元素的表示形式。
The company also opened a 400 number, set up call centers to provide customers with integrated services.
公司还开通了 400号码，设立呼叫中心为客户提供综合服务。
The company also opened a 400 number, set up call centers to provide customers with integrated services.
公司还开通了 400号码，设立呼叫中心为客户提供综合服务。
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