free fall是什么意思

网络释义

用法例句

The evolution of surface waves is measured for vertically free falling films using the improved microcomputer-based on-line and real-time measurement system.

借助自行研制并经改进的多点电导传感器和微机化实时在线测量系统，对垂直管外自由降膜流表面波的演化进行实时在线测量。

The removal rates of four heavy metals(Cu,Zn,Cd and Pb)during free sedimentation of runoff were investigated based on test results on the initial road surface runoff after 15 rainfall events from February 2008 to February 2009 on the Lingqiao section of the Nanjing Airport Expressway.

在对南京机场高速公路令桥段2008年2月～2009年2月15场降雨事件初期路面径流进行自由沉降试验的基础上,考察了自由沉降过程中Cu、Zn、Cd、Pb4种重金属的去除率随时间的变化特征。

In the process of free falling of particle stream,the ambient air may be drawn into the particle stream to form a particle plume.

在微粒流的自由下落过程中,环境空气会被卷吸到微粒流中,形成微粒羽流,有关微粒羽流与环境空气关系的基础理论及数值模拟研究文献相对较少。

fall:To drop or come down freely under the influence of gravity.

落下:因重力作用而自由下降或下落

To drop or come down freely under the influence of gravity.

落下因重力作用而自由下降或下落

The natural population growth rate dropped from 14.39 per 1,000 to 11.21 per 1,000.

人口自然增长率由14.39‰下降为11.21‰；

a free and rapid descent by the force of gravity.

由于地球引力的作用而引起的自由、快速的下降。

When the votes were counted the Liberals were found to have slipped to third place.

在计算票数时，发现自由党已下降到了第三位。

Thorax multimodal medical image registration based on adaptive free-form deformation and gradient descent

基于自适应自由变形法和梯度下降法的胸部多模医学图像配准

free fall lifeboat system

自由降落救生艇系统

shallow-pocket free settling classifier

浅室型自由沉降分级机

He was demoted from sergeant to corporal.

他由中士降到下士.

The prevalence of the rural males has dropped from 15.4% to 12.9%, and the prevalence of the rural females dropped from 20.8% to 18.8%.

农村男性由15.4%下降至12.9%；农村女性由20.8%下降至18.8%。

Conclusion ① In nasal polyp patients the ability to clean out the free radical has descended, the reaction of lipid peroxidation is very active.

结论①鼻息肉病人清除自由基能力下降,脂质过氧化反应活跃。

Consequently, the rate of natural increase dropped from eight to four per 1000 over the decade.

因此，过去10年间，自然增长率由千分之八下降至千分之四。

Experimental Research on Performances of Slit Fin-Tube Heat Exchanger under Free and Restricted Air Inlet Conditions

自由和受限进风条件下翅片管换热器传热及压降特性的实验研究

and the number of people with a primary education dropped from 37,057 to 35,701, down 4 percent.

具有小学程度的由37057人下降为35701人，下降了4%。

The shape of a liquid globule in a free-falling elevator is calculated.

定量讨论了自由降落升降机中实际液滴的形状.

Technical requirement of launching appliances for free-fall lifeboat

GB/T16303-1996自由降落救生艇降放装置技术条件

The childbirth mortality rate has dropped from 50 per thousand in 1959 to approximately seven per thousand; and the infant mortality rate, from 430 to 6.61 per thousand.

孕产妇死亡率由１９５９年的５０‰下降到７‰左右，婴儿死亡率由４３０‰下降到６．６１‰；

The prevalence of anemia in the urban males has dropped from 13.4% in 1992 to 10.6%, and the prevalence among the urban females has dropped from 23.3% in 1992 to 17.0%.

城市男性由1992年的13.4%下降到10.6%；城市女性由23.3%下降到17.0%；