Aim: To explore whether hypoxic response and breath holding at sea level could predict acute mountain sickness (AMS).
目的 :探讨低氧反应和屏气反应在急性高原反应预测中的作用。
Application of Non-breathholding Photography Technology in Angiography
血管造影术中非屏气摄影技术的应用
Effects of Independent Breathholding Method During the Second Birth Process in Parturient;
“自主式屏气法”在产妇第二产程中的应用效果
In terms of a few experimental schemes,an expression for downward atmospheric radiation form various isobaric levels under a range of cloudiness is developed in the formG_p=σT~4[0.
通过多种方案试验,得出适用于各种云量下各大气等压面高度大气向下辐射的计算式为G_p=σT~4[0。
a local region of low pressure or descending air that causes a plane to lose height suddenly.
使飞机突然下降的向下气流或局部低气压地区。
a strong downward air current.
一种强烈的向下的气流。
Under conditions of easterly flow, therefore, or very large westerly flow no vertical propagation will occur.
所以在东向气流或很大的西向气流的情况下，将不发生垂直传播。
Study on Film Formation in Upflow-Aerated Biofilter and Downflow- Aerated Biofilter;
上向流与下向流曝气生物滤池启动与挂膜特性研究
updraft and downdraft
上曳气流和下曳气流
Analysis of the Longitudinal Flight Parameter Under Atmosphere Turbulence
大气紊流环境下的纵向飞行参数响应分析
As the air passes down through the canister, the gasoline vapor is trapped by the charcoal particles.
当这些空气向下流过活性炭罐时，汽油蒸气被活性炭粒子吸附。
Effects of Circumferential Bowing Direction on the Aerodynamic and Acoustics Performance of the Bowed & Swept Blade Under Low Flow Rate Conditions
周向弯曲方向对弯掠叶片小流量工况下气动-声学性能的影响
Lower inlet style means the dusty flow inlet is situated on the lower part of the bag-house,and the direction of flow is opposite to that of dust precipitastion.
下进风是指含尘气体流入口位于袋室下部，气流与粉尘沉降方向相反。
An inward flow or current, as of air.
向内的流体一股向内的气流或水流，如空气
An upward current of air.
上升气流一股向上的气流
as well as in the line of its course,
还有沿航线向前的气流,
westerly component (of an air current)
气流的西向速度分量
They modify the airflow directed towards the rear wing, improving its efficiency and raising downforce levels.
这些翼调整通向尾翼的气流，增进效率和提高下压力。
Ventilation: positive downdraft exhaust ventilation should be provided to maintain vapor concentration below TLV.
通风：为了使气体聚集程度维持在阀极限值之下，应提供通畅的向下棋流排气通风设施。
STUDY ON THE HYDRODYNAMIC PROPERTIES IN A COCURRENT THREE PHASE FLUIDIZED BED
气液并流向上三相流化床流体流动性质的研究
With input of the control signal,the ACT could provide thrust to the flight vehicle by injecting jets into the outer flow field.
在控制信号的作用下,ACT通过向飞行器外流场喷射高速燃气流为飞行器提供控制力。
An Analysis of LPG Trade Flows;
中国LPG国产气与进口气流向剖析