差

Because the diffusive term is discretized with divided forward difference or divided backward difference according to the sign of convection velocity, these methods keep first order accuracy for diffusive term.

3.2考虑规则网格上的一维和二维定常型对流占优扩散问题，离散方法采用了有限体积方法及普通的有限差分方法，基本离散思想是将对流项提高到二阶精度，扩散项则根据对流速度的方向决定采用向前或向后差商离散。

Change saline industry at western country fluorine relatively for, our country fluorine changes technology of saline industry existence dimensions of difference of quality of backward, product, enterprise difference of small, benefit, pollution serious, management does not have the blemish such as foreword.

相对于西方国家氟化盐工业来说，我国氟化盐工业存在技术落后、产品质量差、企业规模小、效益差、污染严重、治理无序等缺陷。

All sorts of inland river that have at that time from Guangdong carry shipping to look, because scientific guiding and management are lacked on boat type development, let things drift, so although have a few better ships type, but quite all sorts of one part is major even carriage shipping is dated and backward, line difference, draft is late, boat engine paddle does not match, speek of a ship or plane is small, cost can be high, economic benefits is poor, hang ship of paddle motor vessel especially.

从广东当时所拥有的各种内河运输船舶来看，由于在船型机型发展上缺乏科学的引导和治理，放任自流，所以虽有一些较好的船型机型，但相当一部分甚至大部分各种运输船舶都陈旧落后，线型差，吃水深，船机桨不匹配，航速低，耗能高，经济效益差，非凡是挂桨机船舶。

BAL in patients with poor response to treatment, the disease risks of poor prognosis.

BAL患者对治疗反应差，病情凶险，预后差。

We are full of vavuum pump of revolutionary 4RB compression ring to be able to arise be as high as 1, of 000mbar press difference---Far outclass is other any baric type compressor, end at present, the 4RB volume that the other system that can produce this to approach poor range wants to compare us is huger, noise is louder, and easy attaint.

咱们有钱人造反性的4RB气环真空泵能型成高达1，000mbar的压差---远远高于另外任何的气压式缩小机，截至当前，能型成此压差领域的另外体系要比咱们的4RB容积更巨大，噪声更加高，并且易于损伤。

When investors are in the treasury secondary market, they have to undertake two kinds of risks: the first one is yield risk, that is, return of investment is lower than inflation rate. This risk can be depicted as the deviation between the ROI and the inflation rate. Secondly, fluctuation risk in the treasury secondary market, that is, the uncertain fluctuation risk may be bullish or bearish in the treasury market.This risk can be depicted as the square deviation of the treasury price in the secondary market.

在国债现货二级市场上的投资者，要承担的风险主要有两种：第一种风险是收益率风险，也就是投资收益率可能低于通货膨胀率的风险，这种风险可以用与通货膨胀率相比较的差值的大小来描述；第二种风险是二级市场价格波动性风险，也就是市场价格上、下波动的不确定性风险，这种风险可以用二级市场价格的标准差来描述。

To overcome the problem of limited market data on forward credit spread quotes, and to increase the accuracy in estimation, we propose a multinomial tree model in this paper and apply it on both European and Bermudan CDSwaptions.

相较过去文献上建构多元树必须配适标的资产对数报酬率之分配的多阶动差，本文建构多元树的方法仅需配适较少的动差，即可建构出任意分枝个数的多元树模型。

In the pricing of a Bermudan CDSwaption, by assuming that the forward CDS credit spread are log-normally distributed, Tucker and Wei (2005) illustrate some of their applications and propose a binomial tree valuation model.

而在百慕达式 CDSwaption 的评价中，Tucker and Wei (2005)提出了二元树状模型，在 CDS 远期信用利差之分配为对数常态分配假设下得到近似解，然而在此假设之下，只能捕捉到远期信用利差报酬率分配之一阶动差和二阶动差的性质以致於评价的结果缺乏弹性。

As a differential pressure type flowmeter, the basic theory of the V-cone is Bernoulli's equation, which is similar to traditional DP flow sensors.

与传统差压式流量传感器相同，其基本原理建立在伯努利方程上；然而，其机械结构的设计则与传统差压式流量传感器大相径庭。

This paper tries to deduct rigorously the equation for the flow rate by using the Bernoulli equation,and to provide the expression of flow rate coefficient.

在孔板流量计中，流体流过孔板，孔板前后的流道面积收缩，其静压能转化为动能，从而出现压差，压差的大小反映流量的大小。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。