二叉

The seventh chapter mainly introduces the binominal tree model and studies the yields, prices and risks of bonds under the condition that rate is uncertain.

第七章主要介绍了二叉树模型。研究的是利率不确定情形下债券的收益、价格和风险。

Currently, option pricing models have been used as the main measurement methods of employee stock option, which include B-S model and binominal model, etc.

员工股票期权公允价值的计量方法主要是采用期权定价模型，目前运用较多的期权定价模型主要有布莱克一斯科尔斯期权定价模型以及二叉树模型。

This article argues that binominal model be more appropriate for measuring the fair value of employee stock option, through the analysis of option pricing model and the comparison between tradable stock option and employee stock option.

本文则通过对两种期权定价模型步骤及变量的分析，并对可交易股票期权与员工股票期权进行比较，认为二叉树模型应该更适用于计量员工股票期权的公允价值。第四章，&员工股票期权与每股收益&。

So the stock price can be calculated by using Black-Scholes model and European call option binominal tree pricing model,the price of which depends on the price and maturity period of the corporation s bonds.

指出公司股票是基于公司价值的看涨期权，因此可用Black-Scholes模型和欧式看涨期权二叉树定价公式对公司股价进行计算，其结果取决于公司债券到期时还本付息的金额以及债券的存续时间。

The cloned Buchnera groEL genes of Schizaphis graminum and Rhopalosiphum maize were ligated into pBV221,pET30a and pTrcHisA expression vector for construction of pBVRM,pBVSG, pETRM,pETSGPR,pTrcRM and pTrcSG. They were transformated into E. coli BL21(DE3),DH5a and JM109 for studying their expression.

2将克隆的玉米蚜和麦二叉蚜Buchnera groEL基因连接到原核表达载体pBV221、pET30a和pTrcHisA上，构建了含2个目的基因的6个表达原核表达载体：pBVRM、pBVSG，pETRM、pETSG和pTrcRM、pTrcSG。

However,Because of its pseudo dibranch biological characteristic,main trunk height mostly is decided by the height of seedling on the natural conditions,which had greatly affected on Paulownia timber productivity.

由于泡桐假二叉分枝的生物学特性，在自然条件下，苗高往往就决定了主干的高度，给泡桐生产造成了巨大的经济损失。

Because the branches divide at a 45-degree angle, this is called dichotomous branching and is characteristic of hyphae in aspergillosis.

因为分支呈45°角，故而称为二叉分支，是曲霉病中菌丝的特征性的表现。

Upright stems bear sparse emergences and divide pseudomonopodially with the isotomous lateral branches.

具有根状茎，气生茎上着生有稀疏的刺状突起，假单轴分枝，侧枝等二叉分枝。

The better transmission property can be achieved by using this method. This method is realized in this paper, and simulation shows that the method of nonuniformly parting the channel has great potential to improve the transmission property of the channel.

论文实现了二叉树分解的子信道划分方法，给出了非均匀带宽划分的比特分配结果，和均匀带宽划分的子信道比特分配结果进行了比较，并且通过改变小波包分解的参数模拟了其性能。

Stems unarmed, sometimes with conspicuous lenticels, or bark sometimes shredding; branches often swollen at 3-7-lacunar nodes; pith continuous or interrupted by diaphragms at nodes; tendrils simple, bifurcate to trifurcate, or 4-12-branched, usually leaf-opposed, rarely tendrils absent.

茎无刺，有时有明显的皮孔，或者树皮有时碎片状（在大多数葡萄属的种里；分枝通常在3-7节腔隙膨胀；髓连续或在节上被膈膜间断；卷须单，二叉对三叉，或者4-12分枝(在Parthenocissus)，通常对生，很少无卷须。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。