查询词典 acceleration time

Three objective measures of voluntary cough (expulsive phase rise time; volume acceleration, and expulsive phase peak flow) were each associated with aspiration risk category (areas under the curves, AUCs, were 0.93, 0.92 and 0.86, respectively).

自主咳嗽的三个客观性指标(排出相上升时间、容积加速和排出相峰值流量)均与误吸的风险类型（曲线下面积AUCs分别为0.93、0.92和0.86）有相关性。

The meridionally accelerated axial-flow fans including meridian acceleration rotor, vaneless diffuser and volute was numerically simulated in the whole flow passage by Reynolds time-averaged N-S equations with tensor and k-ε turbulence model.

采用三维雷诺时均N-S方程和标准k-ε湍流模型，对包含叶轮、无叶扩压器与轴向蜗壳于一体的子午加速风机进行了整机全流道的数值模拟。

The conventional SHPB technique is improved by using a pulse shaper. Pulse shapers technique is used to modify the incident wave and decrease the effect of wave dispersion to ensure stress equilibrium and homogeneous deformation in specimen, and furthermore a constant strain rate is attained during the loading history. The lasting time of acceleration pulse is enhanced to numerable MSEL, which is more close to actual loading.

本文改进了传统的霍普金森压杆技术，采用波形整形技术，改变加载波形，获得了比较光滑的入射波，降低了波的弥散效应，保证实验时火工品试样中的应力平衡和均匀变形，得到了更接近常应变率的动态加载条件，使加速度脉冲持续时间t提高数倍，更加真实的反映了火工品实际加载环境。

Then they were subjected to the classical corrosion experiment, such as outsea in-situ plates test and indoor salt-spray acceleration test in order to study the potential, thickness, and weight variation with time of different coating systems in different corrosive environment.

对喷涂锌铝再涂装有机涂层的的复合覆盖层的防腐规律和机理的研究则是少见报导，本论文的工作将初步揭示在该领域金属及有机复合覆盖层在海洋环境中的腐蚀过程及失效机理，为该技术在我国的发展提供理论基础。

At the same time, as the acceleration of the opening up in financial business and the diversity of the financing channels of big enterprises. We encounter with the over mobility and the progressively reducement of the bank profits space, thus making the banks shoulder of the suppression caused by the fact that major clients return the loans together. The banks traditional business shrinks constantly. So that they are in the great need for a new exploited market.

与此同时，随着近年来金融业对外开放步伐的加快和大企业融资渠道的日益多元化，我国出现了流动性过剩和银行盈利空间逐步缩小并存的双重压力，致使银行普遍面临大客户集中还贷的压力，传统业务空间持续萎缩，迫切需要开拓新的市场领域。

The advantages of a period of sley dwell, in order to increase the time available for weft insertion and thus allow a higher loom speed to be achieved, are so obvious that the possibility of including a similar feature on a shuttle loom should be considered. The main difficulty is that the amplitude of the sley's movement necessary to allow a large enough shed would produce very large forces of acceleration and retardation if its movement were confined to a relatively small part of the pick cycle.

筘座的静止时间对增加引纬时间，提高织机速度的这一优点是如此之明显，以至于应该考虑是否让有梭织机也具有类似的性能，这样做的主要困难是，如果筘座的运动被限制在引纬循环中的较小部分，为了形成较大的梭口，筘座的动程会引起较大的加速力和减速力。

This paper studies numerically the influence of the tip clearance on the three-dimensional viscous flowfield and performance of the NASA Low-Speed Centrifugal Compressor impeller with a vaneless diffuser. A three-dimensional viscous code developed by the authors is applied with several acceleration methods: local time-step, multigrid and residual smoothing.

通过求解N-S方程，数值研究了叶顶间隙对NASA低速大尺度离心压缩机三维粘性流场及气动性能的影响，在计算程序中采用了当地时间步长、多重网格以及隐式参差光顺来进行加速。

But nowadays, villatic function begins change, capital high end consumes the buy course of study of the group to watch ceaseless maturity, constant change, the acceleration of together with wealth of society is accumulated, villa upgrades the time of replacement is shorter and shorter.

但如今，别墅功能开始转变，京城高端消费群体的置业观不断成熟、不断转变，加之社会财富的加速积累，别墅升级换代的时间越来越短。

The wrappage placed on the vibration test machine dieblock so that it within a reasonable amount of time in accordance with regulations of the vibration waveforms, acceleration and vibration frequency, evaluation of wrappage's ability to withstand vibration and packaging ccultured mounted object protective ability test.

将包装件放在振动试验机台面上，使其在一定的时间内按规定的振动波形、振动加速度和频率进行振动，评定包装件承受振动的能力和包装对内装物保护能力的试验。

This paper models airdropping, simulated the process of cargo impacting ground, analyzes the effects of airdrop velocity, cargo materials, and cargo thickness on peak acceleration and pulse duration. It helps to provide guidelines for field experiments, and accordingly reduces the time and the cost.

在建立空投货物模型的基础上，利用计算机仿真货物与地面冲击的过程，分析下落速度、货物材料、厚度对最大加速度和脉冲持续时间的影响，用於指导实际的外场试验，从而节约时间和成本。

I was up all night because I was in pain, she said.

我整夜，因为我在疼痛，她说。

A crow caws /craoks.

乌鸦叫。 51-论文网