usage period

基本解釋

Products on this list will be subjected to certain legal requirements, such as labelling, specification of contents and safe usage period.
此清單上的產(chǎn)品會屬于某些法律的需求﹐象元件的標(biāo)簽?規(guī)格和使用安全期。
The pollution-free agricultural products should be approved by agricultural department and the usage period of the certification mark is 3 years.
無公害農(nóng)產(chǎn)品由農(nóng)業(yè)部門認(rèn)證，其標(biāo)志的使用期為3年。
They should provide reliable information of survey and construction for repair and overhaul in order to prolong the usage period at most, to improve the living conditions.
為大中修提供查勘、施工的可靠資料，最大限度地延長房屋的使用壽命，同時不斷改善房屋的使用條件。

" Moving on, you'll also see that exceeding 5GB of usage during any single billing period gives Verizon the right to "reduce throughput speeds of any application that would otherwise exceed such speed to a maximum of approximately 200Kbps.
ENGADGET: Verizon updates T&Cs to further redefine "unlimited" data usage