y formation 中文意思是什麼

y formation 解釋
y隊形
  • y :
  • formation : n. 1. 構成，形成；設立；編制。2. 組織，構造；形態；形成物，構造物；【軍事】編隊，隊形；兵團。3. 【地質學；地理學】層；組； 【生物學】社區；（植物）群系。adj. -al
  1. At first in the condition of low - velocity impact it is discussed with the formation of ceramic smash cone angle on the base of quasi - statistic hertz and 3 a 6 y a c - theory. then using spherical stress wave reflection and transmission theory under the state of medium - high velocity the formation of spot in the ceramic back. finally the damage mechanism of ceramic suffered by the high impact is simply discussed

    首先，在低速撞擊的條件下，基於準靜態hertz的理論與薩布斯基理論，分析了陶瓷破碎錐角的形成；其次，在中高速撞擊條件下，利用球面應力波反射迭加理論，分析了陶瓷背面的層裂的形成；最後，簡單討論了高速撞擊下陶瓷的破碎機理。
  2. Yttrium aluminum garnet ( y3al5o12, yag ) is not only a very important laser material, but also a high - temperature structural material and a fluorescence material. in this paper, the discussions are mainly focused on the synthesis of yag powders by co - precipitation method, self - propagating high - temperature synthesis and mixed method, powder ' s property, etc. in the co - precipitation method, the precursor was produced by adding a mixed a1 ( no3 ) 3 and y ( no3 ) 3 solution to nh4hco3 solution. yag can be obtained by heating the precursor at looo ' c for 5 hours without the formation of yam and yap transition phase

    釔鋁石榴石（ y _ 3al _ 5o _ 12 ，簡稱yag ）是一種重要的激光基質材料，同時它還作為高溫材料和熒光材料得到了廣泛的應用，本文主要討論了化學共沉法、燃燒法制備yag的超微粉的工藝，並對yag超微粉的性能及物相進行了分析；採用固相合成法制備了ca ， ca ： yag系列陶瓷，並對其結構和性能進行了討論。
  3. It was also noted that irradiation treatment with low dose ( 10gy ) of y rays exerted slight stimulating effects on callus induction and formation of embryogenic calli in particular. production of embryogenic calli was obviously promoted by addition of 0. 1 ~ 0. 2mg / l bap or 2. 5mg / l cuso4 5h2o, or enhancement of sucrose concentration to 60g / l in subculture medium

    在繼代培養基中添加0 . 1 0 . 2mg lbap或2 . 5mg l硫酸銅，或將繼代培養基中蔗糖濃度提高到60g l能促進胚性愈傷組織發生，提高胚性愈傷組織頻率。
  4. Based on the damage evolution formation depicted by kachanov of brittle materials in unitary stress state, in this dissertation, the constitutive equation of nonlinear damage material is given, macroscopically, on the assumption that damage variable is exponential relation to strain, d = ( gy i k ) ", where g is the shear module, k is the damage module and the y is the effective strain, d is damage variable and n is hardening exponent

    在kachanov描述的一維應力狀態下的脆性材料的損傷演化模型的基礎上，文中給出非線性損傷材料的本構方程，唯象地假設損傷變量與應變成冪次關系， d ~ * = （ g / k ） ~ n ，其中g為剪切模量， k為損傷模量，為有效應變因子， d為損傷變量， n為硬化指數。
  5. The formation and distribution of quasicrystal in as - cast mg - zn - y alloy are investigated

    在此基礎上研究合金中準晶的形成機理和分佈特徵。
  6. It was found that the defects were formed and the conductivity increased with the addition of co, which improved the diffusion of proton and inhabited the formation of y - niooh. the electrochemical capacity of the electrode with cobalt additives changed slightly after 206 cycles. the electrode can exhibit excellent high - rate discharge performance, the capacity discharged at 6c ( 1800ma / g ) can reach to 77. 7 % of which discharged at 1c condition

    在納米ni （ oh ） _ 2電極中加入鈷和鋅添加劑，並全面地分析了它們對電極性能的影響，發現加入鈷添加劑后增強了電極的導電性，形成雜質缺陷，更有利於質子的出入，同時抑制- niooh的形成，提高充放電效率和循環穩定性，電極在經過206個循環后變化甚小；電極的倍率放電性能相當出色，在1800ma g （ 6c ）的大電流放電條件下，依然能放出1c的77 . 7 ；在鈷的添加方式中，以co和coo混合添加的效果最佳。
  7. As is known that lead can interfere the formation and ma - intainance of ltp by abnormally enhancing or inhibiting the activity of pkc in hippocampus and the distribution of isoenzyme pkc - y

    某些影響大腦學習記憶功能的毒物也是通過干擾中樞神經可塑性及信號轉導過程而發揮其毒性作用的。
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