查询词典 initial velocity

In the placebo group, intracoronary infusion was not performed in three patients: in one the guidewire could not be adanced into the infarct-related artery, artery, one had an air embolism during initial angiography before the guidewire could be adanced, and one had angiographic eidence of a thrombus in a non–infarct-related artery.

在安慰剂组，有三名患者没有能完成冠脉内灌注；一名是因为导丝没有能放入梗塞相关的动脉，一名患者在血管造影期间，在导丝置入之前就出现了空气栓塞，一名患者在非梗塞相关的动脉中发现了一个血栓。

The simulations show that the air gap is initial at the corner of billet.

过大的结晶器锥度将使坯壳受到结晶器壁的"挤压"作用。

After initial venting of air, additional air will vent as water is heated.

在第一次气体排放后，随着水的加热，还将排放产生的气体。

NOVO Foam's initial offering will focus on product shipments via airfreight from Asia to North America and Europe.

从头泡沫的首次发售将集中于产品的出货量从亚洲空运中心通过北美和欧洲。

Many airworthiness standards,specifications and regulations for initial or continual airworthiness were learned from the aviation accident lessons.

许多适航标准、技术和管理规则，无论初始适航还是持续适航，都来自于航空事故的教训。

This topic unscramble the plant resources of KuCao in FuJian and offers available methods in identification.Bisides,we have initial studise on TLC and the content of esdysterone about this plants of Ajuga.

本次课题，整理了我省苦草的原植物品种，为其提供了有效的鉴别方法，并初步探讨了薄层色谱定性分析方法，同时对蜕皮甾酮的含量作了初步分析。

If a car suddenly pulls out in front of him, his initial alarm reaction may include fear of an accident, anger at the driver who committed the action, and general frustration.

如果一辆汽车突然超车插到他前面，他最初的惊恐反应可能包括对发生事故的恐惧，对当事司机的愤怒，以及一般的沮丧。

The results show that the initial phase is non-homogeneous reaction,solid-liquid mass transfer coefficient is the main factor on the reaction rate,N-methyl-2-pyrrolidone can accelerate the dissolution of polyester film and prompte the alcoholysis reaction into homogeneous process.

结果表明，反应初始阶段为非均相阶段，固-液间传质系数是影响反应速率的主要因素，加入NMP可以加速PET的溶解，促使醇解反应快速进入均相阶段。

Put the discrete algebraic equations of initial derivative conditions and algebraic equation system of governing differential equation together to form a new algebraic system.

采用重心Lagrange插值近似未知函数，推导了未知函数各阶导数微分矩阵的显式表达式，建立了求解二阶常微分方程初值问题的重心Lagrange插值配点法。

It's really the natural setting for algebraic topology because the traditional algebraic invariants (fundamental group, homolog group,etc.) arc isomorphic not only for homeomorphic spaces but for spaces of the same homotopy type. Homtopy epimorphisms and monomorphisms are special morphisms in the category of topological spaces and the initial research of them may be traceable to S.T.

同伦论的本质是利用比同胚关系更广泛的等价关系—同伦关系来对拓扑空间进行研究，这也是代数拓扑研究中一种自然的考虑，因为传统的代数不变量不仅在同胚的空间之间保持同构，而且在具有相同伦型的空间之间也保持同构。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。