reduction of service life 中文意思是什麼
reduction of service life
解釋
縮短使用壽命-
The principal axis of the distributing valve is in the form of double ways for high voltage oiling and double ways for sealing, which ensures fully supply for lubricating oil, greatly decrease in wear and tear, highly improvement in service life, few consumption of lubricating oil, saving of oil and reduction of work cost
分配閥主軸採用高壓雙注油雙道密封結構，保證了潤滑油到位充足，用壽命大幅度提高，並且潤滑油消耗量極少，節省油料，降低了運行成本。 -
Concerning sulfur deposition, the carbonaceous matter deposition and the sulfuric acid salinization due to exterior factors, the measures such as sulfur removal, coke burning and reduction operation can be taken to prolong the service life of the catalyst
對于因外部因素硫沉積、含碳物質沉積和硫酸鹽化原因引起的催化劑活性衰退可分別採取除硫、燒炭和還原操作方法恢復其活性，延長催化劑的使用壽命。 -
Through experiments, we conclude that the new method is not only easy to handle and improve the evenness of current distribution, but also extend the service life of aluminum reduction cells to a certain extent
研究表明，採用軟聯接方法可簡化操作，提高焙燒時電流分佈的均勻性，從而可在一定程度上延長電解槽壽命。 -
The resistance attenuation of each element is considered in the design process, and the statistical parameters of the elements are assumed to be the same as the investigated results of china. in the process of the calculating of the element reliability attenuation in expected service life, several load combination and different load ratio of dead load to live load are considered. in order to ensure that structure reliability in expected service life satisfies the requirement of today ’ s code, a method of choosing the initial reliability index of structure basing on the length of expected service life and the structure resistance attenuation is proposed and the corresponding durability reduction factor is chosen by an optimum algorithm
根據我國現行建築結構可靠度設計原理，考慮耐久性退化影響因素，設計了抗力統計參數與我國調查結果一致的五種代表性鋼筋混凝土構件，考慮多種荷載效應組合以及不同荷載效應比，研究了不同使用期內代表性構件的可靠度變化規律;為保證預期使用期內結構可靠度水平仍可滿足現行規范要求，提出了根據預期使用期和抗力衰減幅度確定結構設計可靠度指標的方法，並通過優化的方法確定了預期使用期內的耐久性折減系數，給出了預期使用期結構可靠度設計的實用設計方法。
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