定数

Methods Pathogenic bacteria from CSF were enriched by centrifugalization with high speed. Leukocytes were counted in microscope and the quantity of the protein was detected by automatic biochemical analyzer.

采用高速离心法浓集脑脊液中的致病菌，镜检计数定量脑脊液中的白细胞数，自动生物化学分析仪检测脑脊液中的蛋白量。

In this paper,the equation of angular speed and centrifugal acceleration on a part in the fuze is derived according to the movement of circumrotatory ammunition at exterior trajectory.

根据旋转弹丸在外弹道上的运动，推导出了引信零件在弹道上的运动角速度和离心加速度表达式，通过计算和模拟仿真得到了脉动的离心加速度曲线，在引信动态模拟装置上进行模拟测试，验证了理论分析的正确性，提出了通过直接计弹丸转数实现引信定距功能的方法。

"Evidence supporting transplantation as the route of transmission ranges from circumstantial (ie, development of TB in the transplanted organ within a few months of transplantation) to well-established (ie, 2 recipients of a single donor's organs both developing disease through genotypically identical M tuberculosis , of which there have been 2 previous reports [4 prior recipients from 2 donors])," said Gregory Rose, MD, from the Division of Infectious Diseases, Ottawa Hospital, Ontario.

安大略渥太华医院感染疾病部门的Gregory Rose医师表示，证据支持器官移植作为疾病传播的路径从依情况而定的（例如在移植后数月后才发生TB）到根深蒂固的，例如两位受赠者同样接受一位捐赠者的器官，且都得到以基因型确认的分支结核杆菌，过去已经有两个报告（从两位捐赠者得到器官的四位受赠者）。

A simple,concise,and rigid method based on the isentropic and adiabatic energy equations to prove the condition of critical flowrate for one dimensional isentropic flow is given in the paper.

给出定常一维等熵流的临界流量发生在喉部马赫数为1时的一种新的证明。

Don't panic, once you know how to do it you can install Moodle in minutes!

不必担心，只要你知道怎么做，你就会在数分钟内搞定Moodel的安装！

Characteristic parameters of separating similar frequency sinusoidal signal can be identified by satisfying termination criterion of 2-norm minimum and solving overdetermined equations on observation matrix.

该算法在观测矩阵的基础上，利用2范数最小的终止准则，通过求解超定方程组，辨识频率相近信号组成的特征参数。

With the frequency and mode shape being regarded as functions of damage parameters, the overdetermined algebraic equations with damage parameters as unknowns can then be constructed by differentiating frequency and mode function on the basis of structure mode finite element formula, the damage parameters of which are obtained via Taylor expansion.

本方法从结构模态有限元算式出发，把频率和振型看作损伤参数的函数，经过泰勒展开获得频率、振型对损伤参数的一阶偏导数，然后构造以损伤参数为未知量的超定线代方程组，求解得到全部损伤参数值。

With the frequency and mode shape being regarded as functions of damage parameters, the overdetermined algebraic equations with damage parameters as unknowns can then be constructed by differentiating frequency and mode function on the basis of structure mode finite element formula, the damage parameters of which are obtained via Taylor expansion. The whole damage parameters can be found via solving the algebraic equations.

本方法从结构模态有限元算式出发，把频率和振型看作损伤参数的函数，经过泰勒展开获得频率、振型对损伤参数的一阶偏导数，然后构造以损伤参数为未知量的超定线代方程组，求解得到全部损伤参数值。

The acquirement and expression of knowledge include two aspects: the first is that the spectrum knowledge of each land use type is automatically obtained from old land use map matched and overlain with remote sensing images; the other is that the changing knowledge of land use types are collected and analyzed, and changed into prior knowledge and probability.

二是通过对研究区各土地利用类型变化特点进行分析研究，并从中得到原有各土地利用类型经数年后变成其它类型的可能性及其大小。并将其定量化表达成新遥感图像上各类型的先验性概率。在知识的应用和分类方面，分别对原土地利用各类型所对应的遥感图像进行知识的应用和处理，利用各自可能出现的类型及其各类型的先验性概率进行最大似然法分类。

A numerical simulation was conducted for a fixed-geometry two-dimensional mixed-compression supersonic inlet with sweepforward high-light and "X" type missile configuration. The results indicate:(1) The total pressure recovery declines with the rise of the free stream Mach number, while the mass flow ratio rises firstly and then declines when its maximum value is obtained at the design point.

针对一种定几何二元倒置&X&型混压式超声速进气道开展了数值仿真研究，结果表明：随着来流马赫数的增加，进气道总压恢复系数下降，而流量系数却先上升，在设计点达到最大值后下降。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。