root of blade 中文意思是什麼
root of blade
解釋
葉根-
And yet there is not in france, with its rich variety of soil and climate, a blade, a leaf, a root, a sprig, a peppercorn, which will grow to maturity under conditions more certain than those that have produced this horror
然而在法蘭西，盡管有各種各樣的土壤和氣候，卻沒有一棵草一片葉一道根一條枝一點微不足道的東西的生長成熟條件能比產生了這個怪物的條件更為一成不變的了。 -
2 comparative study on morphology in the light of the form of the materials, hup shows more approximate relationship with gri : they are 50 ~ 70cm high at the period of fructescence ; both are perennials and reproduce themselves by root stock, and especially, hup can also reproduce itself by branch roots and buds growing from stipes when the stems fall againt the ground, and then those buds develop into new bodies ; while gri can reproduce itself not only by vegetative propagation but by seeds. both of hup and gri characterize with bigger leaf blade and with the approximate form of simple leaf, with root stock, and with two - line seeds in one fruit
2形態學比較從形態上來看，新種hup與分佈海拔高度相近的gri比較接近:植株體高大，果期株高50一7ocm ;都為多年生，能以其根狀莖繁殖，但前者還以較為特殊的營養體繁殖後代，即倒伏后每個莖節上長出新的根和芽，發育成獨立的新植株，後者既能以營養體繁殖，又可通過種子繁殖;具有較大的葉片且單葉形態相近，果實內有二行種子（其它種為一行） . 。 -
Then analytical measurements of the noise were carried out on both of the turbines by means of modern acoustic apparatus and a conclusion has been found that the noise of the concentrated wind energy turbine is lower than the one of the ordinary wind energy turbine and the root of the trouble to cause noise chiefly originates from the turbine blade. besides, the result of analytical measurement also reveals that the power output both of the wind energy turbines will increase with the increase of the wind speed and unfortunately does the noise too. in order to lower the noise, a measures of noise reduction have been advanced that an active method is to develop a wind energy turbine run at a lower rating of wind speed while the passive method is to adopt a board drilled tiny holes, having established a sound technological basis for the development of a kind of wind energy turbine of low noise and high level in the world
主要對濃縮風能型風力發電機在正常運轉時，噪聲產生的機理進行了理論分析研究，並與普通型風力發電機的噪聲進行了對比實驗分析；利用現代聲學測試手段對兩類機型進行測試與分析，得出濃縮風能型風力發電機產生噪聲低於普通型風力發電機和葉輪是風力發電機產生噪聲的主要部件的結論；通過對兩類機型的噪聲、輸出功率的測試，得出隨著風速的增加，兩類風力發電機的輸出功率在增加，產生的噪聲也在增加的結論；提出了進一步降低濃縮風能型風力發電機噪聲的措施，從主動降噪方面，研製低額定轉速的發電機；從被動降噪方面，採用微孔穿板的降噪結構；為研究開發一種國際上低噪聲、高水平的風力發電機打下了良好的技術基礎。 -
There ' s a unusual hole at the root of the blade, what is it used for ? is it used to confirm the foot or the guard
留意到吞口位有一不尋常的補過釘孔，不知原作用何在?是固定吞口或刀擋 -
The changing procedure includes : extending of the blade on the tip, extending of the blade on the root, expanding of the surfaces of the blade, extending of the blade on both sides, calculating the balance angle, changing the coordinate system, changing the data on the consideration of the shrinking and the reflecting of the blade material, etc. a blade surface is bended and distorted in three dimensions
具體轉化過程包括：葉尖型面延伸、葉根型面延伸、葉身型面余量加放、進排氣邊余量加放、平衡角的計算、考慮葉片的收縮和回彈、坐標轉換等。完成了葉身實體造型。葉身型面是復雜三維彎扭曲面，造型上既有精度要求又有光順性要求。
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