段的最長壽命 的英文怎麼說
中文拼音 [duàndezuìzhǎngshòumìng]
段的最長壽命
英文
maximum segment lifetime-
Hereafter being the forecasting to the old age population coefficient, this text has been applied two kinds of regression model, namely univariate linear model and logarithmic model, and thought over three kinds of economic speed of development ( high, middle, low ) in the logarithmic model to forecast the old age population coefficient respectively. finally, by analyzing the forecasted value and the inertia law of population development, the paper points out the lengthening of the population equally expected life span will push forward the aging of population step by step to the advanced age development ; the development trend of the population aging continues to be clear, and just appears a stage characteristic ; furthermore, the population aging speed in rural area will be faster than in the city
此後是對老年人口系數的預測，本文應用了兩種回歸模型，即一元線性回歸模型和對數擬合模型，並在對數擬合模型中考慮了經濟發展速度的高、中、低三種方案，對老年人口系數分別進行預測；最後在分析預測值和人口發展慣性規律基礎上對山東省未來人口老齡化發展趨勢作了較深入分析，指出人口平均預期壽命的不斷延長，將逐步推動人口老齡化向高齡化發展；人口老齡化繼續發展趨勢明顯，且呈現出階段性特徵；農村人口老齡化速度將快于城市。Structural modifications focus on increasing the minimum life of the wing main spar ( originally set at 800 hours ) have carried through several proposed progressive stages of modification with the intention of reducing fatigue problems and providing a life extension of up to 1, 250 hours for a complete refurbishment with a newly manufactured main spar
機體結構上的修改著重於延長主翼梁的最低壽命（ 800小時） ，以進行多次漸進式階段的改造方法來達到減少疲勞和延長壽命至1250小時的目標。In addition, the wedge guiding minimizes seat rubbing and scuffing as seats are contacted only at the last 5 % of total travel, resulting in long cycle life
此外，楔板導軌將閥座摩擦和刮傷減少到運動全程的最後5 %階段，從而延長了使用壽命。
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