frontal area

用法例句

Relationship of tube row number and face velocity in an evaporator for air conditioning unit and its application;

空调装置蒸发器管排数与迎面风速关系探析及应用

The influence of face velocity,condensing temperature and contact thermo-resistance on the quantity of heat-exchanger and the influence of air resistance on face velocity were analyzed.

介绍了一种自控程度好、控制精度高的空调换热器综合实验台的研制过程,其中包括实验台各组成部分的功能以及各参数的设计范围;对不同涨头尺寸的冷凝器的性能进行了实验研究,并根据实验结果分析了迎面风速对换热量的影响、迎面风速对空气侧阻力的影响、冷凝温度对换热量的影响以及接触热阻对换热量的影响。

When a cylindrical fragment is in the air,it is discovered that windward area is stochastic,so the figure modulus of the cylindrical fragment is not single but variable in a range.

当圆柱形破片在空中飞散时,迎风面积随机变化,导致圆柱形破片的形状系数不再是单一的值,而是一个范围,因此必须对已有的圆柱形破片的形状系数进行修正,才能更准确的预测圆柱形破片在空中的速度衰减。

The metrical equipment of typical fragment s average windward area was designed to measuring the fragment s area of cannonball.

典型破片迎风面积测量设备主要用于弹丸破片迎风面积的测量。

Automotive frontal area is projected area of automobile driving direction,which is necessary parameter of measuring automotive air drag coefficient.

汽车迎风面积是指汽车在行驶方向的投影面积,汽车迎风面积是求汽车空气阻力系数的必需参数。

The purpose and the principle of measuring frontal area of fragments are introduced.

对破片测量的作用及相关的理论进行了阐述，并对几种常用的破片平均迎风面积测量方法进行了介绍与分析，其中重点分析了一种新颖的破片平均迎风面积自动测量仪，它由照明系统、万向载物台、ＣＣＤ摄像机、控制和信号处理系统、图象处理与显示系统组成，集光、机、电、计算机等多种先进技术于一体，采用软、硬件相结合的方法，实现了对破片平均迎风面积的高精度、高速度的自动化测量。

Research on the Controlling System of Measuring Typical Fragment Frontal Area

典型破片迎风面积测量控制系统研究

Software Design for the Measurement Equipment of Typical Fragment s Windward Area;

典型破片迎风面积测量设备软件系统设计

The direction from which the wind blows.

迎风面，上风面对着风吹来的方向

I could feel the wind blowing on my face.

我可以觉出风迎面吹来。

Luffing: Altering course toward the wind.

迎风转向：改变航行路线，使之面对风向。

area of cross section of the main air flow

主送风方向横截面积

To change the course of(a ship), especially in order to sail closer into the wind.

向迎风面尤指为了更好地迎风航行而改变船的方向

Carrie raised the front windows, and felt the south wind blowing.

嘉莉打开前窗，迎面吹来一阵南风。

A cool breeze brushed his face, ruffling his hair.

一阵凉风迎面拂来, 吹乱了他的头发。

Study on the Testing of Specific Surface Area and Adsorption Isotherm of Powders by Frontal Chromatogram;

迎头色谱法测定颗粒比表面积和等温吸附线

Down [Up] (with the) helm!

转舵背 [迎] 风!

Beat: The line taken to sail most directly into the wind( about45 degrees from wind direction); also known as" work".

迎风：直接面对风向航行的路线（风向保持约45度角）也称为工作。

Beat: The line taken to sail most directly into the wind (about 45 degrees from wind direction); also known as "work".

迎风：直接面对风向航行的路线（与风向保持约45度角）；也称为工作。

a tree that stood like a banner of welcome billowing in the wind.

那棵树立在那儿，像一面欢迎的旗帜，在风中摇曳。

The captain had to hold the wheel firmly to prevent the ship from broaching to.

船长牢牢掌住航轮，以防船的侧面迎着风浪。

A soft ripple of wind flowed over the corn and brought a puff of warm air into their faces.

柔和的微风吹过庄稼，一股热气向他们迎面扑来。

The vessel resembled a swan with its wings opened towards the wind, gliding on the water.

犹如一只迎风展翅的天鹅，平稳地在水面上滑行。

his black flag unfurled, with the skull and crossbones on it,

黑旗迎风招展，上面交叉着骷髅头和白骨。