The free-edge effect on composite laminates is one of the main factors of structural failure.
复合材料层合结构的自由边效应是复合材料结构总体破坏的主要因素之一。
In this paper, free edge effect of composite cylinder under internal pressure was studied.
本文分析复合材料圆筒在内压作用下的自由边效应，讨论圆筒的叠层顺序对自由边应力的影响，预报最易发生边界脱层的界面。
She had drawn an hour's free breath!
——她曾经吸进了一小时的自由空气！
FREE-AIR IONIZATION CHAMBER USED IN ABSOLUTE MEASUREMENT OF LOW ENERGY X-RAYS
用于低能X射线绝对测量的自由空气电离室
steam air forging hammer
蒸气－空气自由锻锤
as free as the air
像空气一样自由自在
free piston air compressor
自由活塞空气压缩机
ALFA (Air Lubricated Free Attitude)
空气润滑的自由位置
humidity ratio of moist air in the free stream
自由气流湿空气的湿含量
flow freely, as of air or liquids.
像空气或液体一样自由流动。
air is forced through free reeds by bellows.
通过风箱空气被强迫经过自由簧片。
To move about or flow freely, as air.
流动，流通自由走动或流动，象空气一样
A gas released in free space would expand indefinitely.
在自由空间放出的气体将无限膨胀。
A few percent of the CO2 molecules in the air manage to find such electrons.
空气中的一部分co2分子会吸引那些自由电子。
Several pages were torn away by the strong wind, the air of the liberty.
急风已将撕碎了的信吹散，这是自由的空气。
"You are to-day free as air--come and dine with me;
“您今天如空气一般自由，请和我一起用晚餐吧。
The purpose of the free board is to allow the solids to separate from the gas stream.
自由空域的目的是要使固体从气流中分离出来。
Study on Free-space Optical Communication Atmosphere Channel and Design of System;
自由空间光通信大气信道模型研究及系统设计
Of, relating to, or having the constitution of air.
空气的空气的，有关空气的或由空气组成的
Air consists chiefly of nitrogen.
空气主要由氮气组成.