match grain 中文意思是什麼
match grain
解釋
匹配顆粒-
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 surface sticks canada to import the solid bark of primary color, and roast the top very and strictly black of valuable piano paint, bright that divide the craft top thin and red wood grain, luster that have got the precious stone sort is with the texture, endurable often new, its strong and tough surface can resist slight of shot but not leave the trace, and match the plank of last glass crest with the glow - in - the - dark sand aluminum metal alloy pillar, highly respectable shape chien roughly vogue, now modern vogue elegant appearance of your luxurious living room of ream of nobility tasty, cultured qualities
表面貼加拿大進口原色實木皮，烤上極嚴格分色工藝的名貴鋼琴漆，亮麗黑色配上淡紅色木紋，有著寶石般的光澤和鏡面質感，恆久常新，其堅硬的表面可抗拒輕微的碰擊而不留下痕跡，搭配上玻璃頂板和亮光砂鋁合金柱，尊貴的外形簡約時尚，彰現貴族品味，典雅的氣質令您的豪華客廳爭添現代時尚風采。 -
Qwy acid soluble temporary blocking agent is made of carefully chosen natural mineral material, which is processed into serial products of different grain - size distribution according the pore throat characteristics of different reservoirs. it can better match the pore throat along with the reservoir, and at the same time achieve better results of bridged temporary plugging as a result. 1
Qwy酸溶性暫堵劑是以天然礦物為主要原料經過篩選精製而成，在生產過程中根據各種儲層孔喉特徵，加工成具有不同粒度分佈的系列產品，使其與儲層具有更好的孔喉匹配性和更強的橋架暫堵效果。
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