generalization cost 广义成本
The adopted optical material and devices are standard optical fiber communication elements and have the advantages of low cost, easy obtainment and convenient generalization.
所采用的光纤材料和器件均为标准光纤通信元件，成本低，易获得，便于推广。
The utility model has simple structure, convenient operation, low cost and considerable generalization value, improves the reuse rate by 10 times and saves the production cost for enterprises.
本实用新型的有益效果是：结构简单，操作方便，成本低廉，反复利用率提高至10倍，给企业节省了生产成本，有很大的推广价值。
The invention has the advantages of good anti-leakage, smooth and flat coating surface, low cost and easy generalization and use.
本发明具有以下优点：防漏效果好， 涂料面光滑平整，成本低，易于推广使用。
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