待發壽命 的英文怎麼說
中文拼音 [dāifāshòumìng]-
Regarding the accumulator to start motive force urgency treating the maintenance with maintaining, our factory is for suiting the needs of society to swift and violent development and extensive use along with automobile, motorcycle as well as agriculture with the car, by way of the constantly improvement to the old style battery - charging unit, producing out " full active protection battery - charging unit of computer ", it has collected to fill and the all direction protection such as flows and joining versely etc in an organic whole, being compared with the ordinary battery - charging unit, it adopts the ring mould transformer of high quality high efficiency, possesses that to bear the weight the current strong, grows in service life etc the characteristic, can make the accumulator 2 - 3 lengthening life span times
隨著汽車、摩托車以及農用車的迅猛發展和廣泛應用，作為啟動動力的電瓶急待維護和保養，我廠為適應社會的需要，通過對老式充電機的不斷改進，生產出「電腦全自動保護充電機」 ，它集過充、過流、反接等全方位保護於一體，與普通充電機相比，它採用優質高效的環型變壓器，具有承載電流強，使用壽命長等特點，可使電瓶延長壽命2 - 3倍。Powder metallurgy turbine disks are worldwide adopted in most advanced aeroengine nowadays. the research of engineering application of them is actively being carried out in our country, and the key problem urgently needed to solve is their low cycle fatigue life prediction. the low cycle fatigue failure of powder metallurgy turbine disks is mainly caused by inclusions, so it ' s important to study the effect of inclusion on the stress intensity factors ( sif ) initiation and development of crack in powder metallurgy turbine disks
當前世界上大多數先進航空發動機均採用了粉末冶金渦輪盤，我國目前正在積極開展粉末冶金渦輪盤的工程應用研究，其低周疲勞壽命預測成了亟待解決的關鍵問題，夾雜物是引起其低周疲勞失效的主要原因，因此開展夾雜物對粉末冶金渦輪盤應力強度因子及裂紋萌生與擴展的影響具有重要意義。
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