stock density 中文意思是什麼
stock density
解釋
立木度-
In addition, more regular cleansing and replenishment of filter materials should be conducted if the water quality is poor and or fish stock density is high
此外，如缸內的水質變差及或所飼養的活魚數目較多，亦應更頻密地清潔和補充過濾物料。 -
In addition, more regular cleansing and replenishment of filter materials should be conducted if the water quality is poor andor fish stock density is high
此外，如缸內的水質變差及或所飼養的活魚數目較多，亦應更頻密地清潔和補充過濾物料。 -
Firstly, the comparation study between the wedge pressing and the contour forging has shown that the transverse deforming initiated from the surface of the preforms. when the superficies reached the moulding wall, the deforming moved downwards as the high - direction deforming increased, till the moulding chamber was full of stock ; the transverse deforming of the moulding pressing stock initiated from the center of the stock then surned into a drum - type. the distribution of the density and hardness of the high - direction indicated that the wedge pressing acquired a better ability of pressing penetration
首先對比研究了楔形壓制工藝與模壓緻密化工藝，發現楔壓坯料的橫向變形從上表層開始，當上表面與模壁接觸后，隨著高向變形量的增加逐步向下移動，直至坯料充滿模腔;模壓坯料的橫向變形從坯料中間開始，形成鼓形。高向的密度、硬度分佈表明楔壓比模壓具有更好的壓透能力。 -
Abstraction of seawater for keeping live seafood should be avoided during and after inclement weather. ( 4 ) live fish and shellfish should be kept separately in different tanks and at a stock density not causing overcrowding
應把活魚及介貝類水產動物分開放置在不同的魚缸內飼養，而在每個魚缸所飼養的活魚或介貝類水產數目不宜太多，以免過分擁擠。 -
Based on the diffusion equation, the transition probability density of stock prices is calculated by means of the monte - carlo method
摘要在擴散方程對股價運行描述的基礎上，用蒙特卡羅方法得出未來某一時刻股價轉移概率密度的數值解。 -
Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great
採用雙向楔形壓制，大尺寸噴射沉積5a06鋁合金楔壓坯的組織和性能變化具有如下特點:當高向變形量為20 %時，大的孔洞變形破碎為小的孔洞，或呈線狀孔;隨著高向變形量的增加，顆粒進一步變形，孔洞進一步破碎，大孔「吞併」小孔，小孔塌陷並逐步消失;當高向變形量達到60 %時，孔洞量大為減少，材料基本緻密，組織趨于均勻，楔壓坯料的密度、硬度變化曲線接近水平線，坯料的相對密度達99 . 7 % ，抗拉強度_ b = 408mpa ，屈服強度_ （ 0 . 2 ） = 289mpa ，延伸率= 13 . 6 % ;對比其它的壓制溫度，在450楔形壓制的坯料組織均勻，孔洞及顆粒邊界基本消失，顆粒之間冶金結合良好。 -
As not to know the stock prices obey what distribution, we accord to historical data to estimate the distribution of the ultimate stock prices by kernel density estimation, then develop the theorems for options pricing, and price the option
本文研究股票價格不服從幾何布朗運動，即股票的對數收益率並不服從正態分佈時的歐式期權價值評估的非參數估計
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