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1)  Specific area
比面积
1.
Design of a turbocharger compressor stage was formulated as a multiobjective nonlinear mathematical programming problem with the objectives of miniming aerodynamic losses and maximizing specific area (mass flow rate / flow path area of impeller inlet).
本文将离心增压压气机的设计问题表述为其空气动力学损失极小化,比面积(质量流率/动叶进口面积)最大化的多目标非线性数学规划问题。
2)  integral area ratio
积分面积比
3)  area-volume ratio
面积-体积比
4)  specific sutface ratio
比表面积比
5)  area ratio
面积比
1.
The effect of confluence angle, discharge ratio (ratio of branch pipe discharge to total discharge in main pipe) and area ratio (ratio of branch pipe area to main pipe area) were analyzed.
分析了交汇角、流量比(支管流量/合流量)及面积比(支管面积/主管面积)等因素的影响规律,并对各影响因素进行了分析比较。
2.
By using the semi experiential engineering arithmetic based on the ideology of area ratio, the slope of lift coefficient curve, the zero lift drag coefficient and the induced drag factor of double delta wing aircraft were calculated.
采用基于面积比思想的半经验工程算法计算了双三角翼飞机的升力系数曲线斜率、零升阻力系数和诱导阻力因子。
6)  specific leaf area
比叶面积
1.
Relation between specific leaf areas and leaf nutritent contents of plants growing on slopelands with different farming-abandoned periods in the Loess Plateau;
黄土高原不同退耕年限坡地植物比叶面积与养分含量的关系
2.
Photosynthesis in relation to leaf nitrogen,phosphorus and specific leaf area of seedlings and saplings in tropical montane rain forest of Hainan Island,South China;
海南岛热带山地雨林幼苗幼树光合与叶氮、叶磷及比叶面积的关系
3.
Concentrations of PAHs in leaves of six dominant species in the Pearl River Delta of South China were determined with gas chromatography and mass spectrometry(GC-MS),and synchronously leaf-lipid contents,leaf areas,specific leaf areas(SLA) were measured.
应用气相色谱-质谱联用方法测定了珠江三角洲地区6种主要树种叶片多环芳烃(PAHs)的含量,并对相应的叶脂含量、叶面积、比叶面积进行了测定,探讨了叶片PAHs含量特征和种间差异的影响因素。
补充资料:比表面积
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性质:单位体积或单位质量固体的表面积,通常用1g固体的总表面积表示。由于制备条件的不同,固体与气相接触的表面大小可有很大差异。多孔性和细碎性固体的表面积包括内表面和外表面,内表面由其内部孔隙和裂缝缝隙面积构成,外表面是固体外部的几何面积,二者之和为总表面积。比表面通常用物理吸附法测定,如BET容量法、重量法、流动色谱法等。有时也可用液相吸附法测定。对比表面大于1m2/g的样品常用低温氮吸附容量法或流动法,而小表面则用低温氪吸附法。对于非孔性固体,也可根据测出的粒子大小计算比表面。

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