简便

In order to solve the problem,We proposed a simple formula for computing paraxial travel time of single-way wave operator. The formula is based on the forward and inverse transform between time-space domain to frequency-wavenumber domain and from vector field to exponential manifold. The travel time are expressed as polynomials of the horizontal offset between the two points, and the single-square-root operator in frequency-wavenumber domain are expressed as polynomials of wavenumber. Coefficients of travel time polynomials and that of single-square-root operator are related each other and calculated by Lie algebraic integrand, exponential map and the saddle-point method.

针对此，基于时间空间域到频率波数域和向量场到指数流形上的正反变换，提出了计算单程波算子旁轴走时的简便公式，将走时表示成空间变量(地面点到地下相点的水平距离)的多项式，将频率波数域单平方根算子表示成波数的多项式，运用Lie代数积分、指数映射和鞍点法将走时多项式的系数与单平方根算子的系数联系起来，运用单平方根算子的系数计算走时多项式的系数。

In order to solve the problem, We proposed a simple formula for computing paraxial travel time of single-way wave operator. The formula is based on the forward and inverse transform between time-space domain to frequency-wavenumber domain and from vector field to exponential as polynomials of wavenumber. Coefficients of travel time polynomials and that of single-square-root operator are related each other and calculated by Lie algebraic integrand, exponential map and the saddlepoint method.

针对此，基于时间空间域到频率波数域和向量场到指数流形上的正反变换，提出了计算单程波算子旁轴走时的简便公式，将走时表示成空间变量（地面点到地下相点的水平距离）的多项式，将频率波数域单平方根算子表示成波数的多项式，运用Lie代数积分、指数映射和鞍点法将走时多项式的系数与单平方根算子的系数联系起来，运用单平方根算子的系数计算走时多项式的系数。

In this paper, it is introduced first the SPI module in Cygnal's microcontroller C8051F020, including its block diagram, definition and operation of configuration registers associated. Then the external pinouts, division of memory space and corresponding software commands of Atmel's SPI flash memory AT45DB081B are described in detail.

引 言C80 5 1F是Cygnal公司的8位片上系统型单片机系列，采用该公司的CIP 5 1微控制器内核，即在原有的80 5 1内核基础上，根据不同的应用场合增加相应的智能外设及接口，使得应用系统整个控制电路部分的设计开发变得简便迅捷，稳定性和可靠性大大提高。C80 5 1F0 2 0是该系列中功能较强、内部集成资源相当丰富的一款。

Objective To study a new method for extracting agarose.

目的研究一种低成本制备琼胶糖的简便方法。

Then the coefficients of entrance region effect and the relations between them, and the flowbehaviour index n can be obtained by solving the energy integral equation. Under the assumption of the velocity distribution within boundary layer: f = 1-(1-η)n+1/n for example, co...

以边界层内幂律流体层流速度分布假设f=(1一η)~(n+1/n为特例，所求出的结果与文献[4]中的理论值和实验值比较表明，本文的计算是既简便又可靠的。

Objective:build a facile model to estimate birth number.

目的：建立一个简便的出生人口预测模型。

The steel tube modular falsework system is widely used in the bridge construction with its simplicity and good performance as a whole.

钢管支架模板支撑系统以其施工简便、整体性好等特点在现浇桥梁施工过程中得到广泛的应用。

Load-carrying capacity of staging of should be calculate by special design,which is from common used single row or double rows falsework.

作为施工时的临时结构，计算方法应简便可靠的确定其承载能力同时保证经济合理。1胎架承载力计算分析1.1胎

The main value of the system is that it's fast, so small transactions — at newsagents, fast-food outlets, coffee shops, car parks and the like — can be carried out.

这样一来，报摊、快餐店、咖啡店、停车场之类经常进行小额交易的地方就可以实现简便快捷的支付了。

Statistical testing approach has been proved to be with stronger fault revealing power than deterministic testing method in practice.

类是面向对象程序的基本单元，只有对类进行充分的测试才能确保高层测试简便且可信，从而降低整个测试过程的代价。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。