求翻译：该产品的可持续性体现在本节电系统的成本较低，产品可广泛生产并推广，并且该系统是基于已经被广泛使用的考勤机而开发研制的，其设计符合大众的考勤习惯，因此有着较强的操作可持续性是什么意思？

The product is reflected in the sustainability of low-cost energy-saving systems, products can be widely produced and promoted, and the system is based on the attendance has been widely used machines and developed, and designed to meet the public's attendance habits, so operation with a strong susta

The sustainability of the products in this section reflect the electricity system is relatively low-cost products, production and marketing, and the system is based on the widely-used attendance machine, developed by its design, consistent with the general public attendance habits, and therefore the

This product sustainable manifests in this electricity saving system cost is low, the product may widely produce and promote, and this system was based on the checking attendance machine which widely used is already developed the development, its design conformed to populace's checking attendance cu

The sustainability of product embodied in this energy-saving system of the low cost of a wide range of production and marketing of products, and the system is based on the attendance has been widely used and developed, its design conform to mass attendance habits and therefore has a strong operation

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