direction ratios 中文意思是什麼
direction ratios
解釋
方向數-
Based on the direction of sources and the ratios of sandstone to formation of sedimentary rocks, together with the sedimentary structures and textures, paleocurrent direction and the characteristics of paleontology, etc., the planimetric maps of sedimentary facies of each stages in the studied area are compiled in order to recognized the extension of dominant facies and the evlotionary history of sedimentary environment, hi the stage of benxi and taiyuan, lagoon - tidal flat sediments are widespread in the area, and the deposits of estuary, lagoon and small delta in the northwest margin of ordos
以物源方向和沉積巖砂地比值為基礎，結合沉積結構構造、古水流方向及古生物特徵等，編制了研究區各期次的沉積相平面圖，以識別優勢相展布和沉積環境演化。本溪期和太原期研究區瀉湖?潮坪沉積分佈廣泛，西北緣發育河口灣、瀉湖及小型三角洲沉積。 -
Preliminary study on direction variabilities of stable carbon isotope ratios and its mechanisms in trees
樹木穩定碳同位素比率的方位差異及其機理初步研究 -
In the present dissertation, the densification mechanisms and the structure controlling of various transient layers of w - mo - ti flier - plates with graded wave impedance were mainly investigated. wholly dense w - mo - ti flier - plates were then prepared by powder stacking and hot - pressing. in order to achieve a required wave impedance profile and a quasi - continuous change along the thickness direction, the ratios of components in transient layers were well adjusted
論文採用粉末冶金方法，詳細研究了w - mo - ti體系梯度飛片材料中各組元的燒結緻密化機理與控制方法，以精細控制不同配比的混合粉末的鋪填方式與鋪填結構來減小梯度飛片材料內部波阻抗值的躍變幅度，成功制備出波阻抗按指定分佈特徵沿厚度方向準連續變化的、波阻抗面平行度高並且整體緻密的w - mo - ti體系梯度飛片。 -
The ratios of the flow rate ( q / q ) are 1. 4 1. 0 0. 6 respectively. three blade - to - blade passage and the three cross - section along the axial direction at each of the passages were selected for measurements
測試窗口分別取在三個不同的葉槽中，在每個葉槽中沿軸向測試三個斷面和一個間隙斷面。
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