grain angle 中文意思是什麼
grain angle
解釋
紋理角度-
Abstract : solid propellant rocket motors are preferred for most ballistic missiles because they need simple maintenance and can be launched quickly. but the conventional thrust termination devices limit the depletion of every stage ' s grain and increase some extra - weight. an improved method for designing a multi - stage solid rocket based depleted shutdown was provided. in order to solve the problem of lack of thrust termination devices, a device to adjust the burnout angle will match the final burnout velocity and satisfy the desired range. the method can also limit the detection from anti - ballistic missile system
文摘:由於維護簡單和發射快速，彈道導彈多用固體火箭發動機，但繁雜的推力終止裝置使各級裝藥不能耗盡並讓結構增重.提出了一種對基於耗盡關機多級固體火箭概念設計的改進方法，此方法滿足導彈系統主要的戰技要求.為解決無推力終止裝置的末速不準問題，可在末級發動機採用姿態調整裝置，對射角進行調整，配合末速以滿足射程要求.本方法還可抑制敵方反導探測 -
The mineral rock - silica rock mostly composes of three kinds of silica qualities, and the first structure jasper silica rock, the second icrocrystal quartzite, the third the quartz grain clast. cement is carbonate, contain a little amount carbonate loach. silica rock, commonly assume edge angle or hypo - edge angle
區內的含礦巖石?硅質巖主要由三種硅質成分構成，第一種為顯脫玻?霏細結構的碧玉質硅質巖，第二種為微晶石英巖，第三種為石英顆粒內碎屑。 -
The second section of this paper lists and analyzes some representative property rights delineation events, such as grain price regulation, rural land requisition, asset contract, law defect, farmers " burdens, in order to testify the theoretical proposition from the practical angle
本文第二部分結合中國農村經濟中的現實情況，列舉及分析了糧價管制、農地徵用、資產文契、藝玉八碩士學住論文wmas 」 er 』 stihsis法制缺陷、農民負擔等一些有代表性的影響農民收入的復雜產權界定事件，以求從實踐角度驗證理論命題。 -
After ten passes, the average grain size of the microstructure which including high angle boundaries is about lum. the vickers hardness increases rapidly after ecap, from 78. 7hv to 185. 3hv
Ecap十道次時，晶粒尺寸在1 m左右，晶界為大角度晶界，硬度明顯增加，顯微硬度從原始態的78 . 7hv增加到185 . 3hv 。
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