大部分锅炉的使用期限是15到20年。
使用期限不限，一次购买，终身使用。
任何各论的物质也必须服从其使用期限。
The subject of any other monograph must comply throughout its period of use.
这是产品有效的使用期限。
因此默克尔匆忙撤消了对核电站使用期限的延长。
Hence Mrs Merkel's hasty retreat from the nuclear-deadline extension.
这座桥的使用期限为50年，而当时只用了40年。
The bridge was 40 years old but had a life expectancy of 50 years.
结论：中药纱条可以延长其使用期限、保存期限。
Conclusion: the gauze strips of Chinese medicine can extend its storage time and using time limit.
在解决建设用地使用期限问题上是必须坚持的前提。
Period of use in resolving the issue of land for construction must adhere to the premise.
我们有办法来保护现有干预措施的有效性和使用期限。
We have strategies in place for protecting the effectiveness and lifespan of existing interventions.
每次调胶量的使用期限随温度和混合量而发生变化。
The service life of mixed adhesive each time shall be changed following temperature and mixed amount.
租赁期限超过临时建筑的使用期限，超过部分无效。
If the lease term exceeds the service life of a temporary building, the excessive part shall be void.
产品过了使用期限，需要重新维修检查，或报废处理。
The products need to re-repair inspection or special treatment of retirement after service time.
该域名的使用期限将在原有使用期限基础上延续一年。
The term of service of this domain name will continue one year on foundation of original term of service.
数字证书由受信任机构(认证机构或CA)发布，并且限制了使用期限。
A digital certificate is issued by a trusted authority (a certificate authority or ca) and is issued only for a limited time.
只读存储器是由计算机中的小型常使用期限的电池来维持的。
ROM is sustained by a small long- life battery in your computer .
品牌不同于其他的资产，像专利，版权，这些都是有使用期限的。
Brands differ from other assets such as patents and Copyrights, which have expiration dates.
抗菌素的使用期限一般为1 -10天，这削弱了新药物开发的经济动力。
Antimicrobials are typically used for a period of one to ten days, decreasing the financial incentive for new drug development.
致冷复合材料的使用期限是个重要的问题，但是目前未见相关报导。
The life time of refrigeration composite is the critical factor, but there is not any people to study it.
随着这些基金的撤退，银行将被迫使用期限更长(且成本更高)的筹资手段。
As the funds retreat, the Banks will be forced to turn to longer-term (and more expensive) funding markets.
只有在特殊的环境下这种专门的使用期限才会延伸去改变正常的事件进程。
Only in the most exceptional circumstances is the lifespan of a patent extended to alter this normal process of events.
信产部的《环保使用期限通则》将给出全国统一的环保使用期限指导意见。
The General Rule of Environmental Protection Use Period of Electronic Information Products to be released by MII will give some nationwide applicable guidance.
可依据各种来源的可获得性、利率和资本的使用期限等的因素来选择债务资本来源。
Debt capital can be choosed, according to some factors, such as the conquerable of kinds of sources, interest rate and the using term of capital.
这个层面的认知只能通过花时间来学习产品战略方向、预期用途、目标用户和使用期限。
This level of understanding will only come from spending the time to learn the strategic direction of the product, its intended use, target audience and shelf life.
使用巧妙的字体，延长磨粉盒的使用期限，节约纸张都是自下而上的缩减打印成本的方法。
Using clever fonts, making toner cartridges last longer and saving paper are all bottom-up ways to cut printing costs.
这个值也是由服务器管理，一般是”10”或者更大，参阅下面的使用期限和最大使用次数。
The value is managed by the server, however a typical value would be "10" or higher. See the section below about Retry period and maximum retry count.
定期给热风幕器做维修保养，让热风幕器运行在正常的工况下。可以保证热风幕器的使用期限。
Regular hot air curtain device to do maintenance, so that the hot air curtain device operating under normal conditions. Can guarantee the use period of the hot air curtain.
垂直涡轮泵(相当于系统过程推动头)由于易于维修和较长的使用期限已被证明是节省成本的。
Vertical turbine pumps (equivalent to Process Systems Thrust Head) have proven cost effective due to the ease of maintenance and long service life.
基于“安全期限理论”，提出了直升机使用期限消耗量的计算方法，并进行了实例的可靠性分析。
Based on the security time limit theory, the calculation method for the consumption amount of the appointed time and some examples of reliability analysis were presented.
基于“安全期限理论”，提出了直升机使用期限消耗量的计算方法，并进行了实例的可靠性分析。
Based on the security time limit theory, the calculation method for the consumption amount of the appointed time and some examples of reliability analysis were presented.
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