下游的

The present production situation and market prospects of the main epichlorohydrin downstream products,such as epoxy resin,synthetic glycerol, chlorohydrin rubber ,and so on,are described.

论述了环氧氯丙烷的主要下游产品环氧树脂、合成甘油、氯醇橡胶等的生产现状、市场前景等，指出：我国氯碱行业应该重视这些环氧氯丙烷下游精细化工产品的开发，以促进我国环氧氯丙烷的发展。

Ultrasonic measurement method is a new one. It has many advantages, such as, not changing the profile of the flow and characters of the fluid, non-invasion, no pressure losing and can work under the severe conditions. Collecting the flow noise signals at the upstream and downstream of the pipe, adopting the cross correlation method to analysis signals, calculating the cross correlation function and finding the peak of it, then we can get the transit time.

超声波流量测量具有不改变流动状态与性质、非接触、耐恶劣环境等优点，通过对所采集的上、下游流动噪声信号进行相关分析，其互相关函数的峰值位置所对应的时间，为流体流过上、下游传感器之间的距离所用时间，进而计算出流速和流量。

Based on the inquisitional data of sampling sites, this research comparatively analyzed the biodiversity of the natural plant community in the upper and lower reaches of Trim River by adopting diversity index, richness index and evenness index.

本文根据对塔里木河的实际调查资料，分别计算了上、下游典型样地的物种多样性指数、丰富度和均匀度指数，对塔里木河上、下游地区的天然植被的群落特征进行了对比分析。

Several kinds of important downstream products of methanol are introduced,such as formaldehyde,methylformate,methylamine,and so on.

介绍了甲醇的几种重要的下游产品，如甲醛、甲酸甲酯、甲胺等，提出应大力生产和发展甲醇下游产品，并进一步拓宽甲醇的应用领域，加快甲醇应用新技术的开发工作。

Research for the Optimization test of outlet of flood discharge tunnel in Narrow Water Course with Large Included Angle;2. The aerators are widely used in flood discharge tunnel s and spillways to prevent the cavitation damage of the structures,and air is sucked by flow from the bottom in normal aerator.

龙抬头明流泄洪洞采用常规的底部掺气设施，容易在反弧末端下游附近侧墙处形成掺气盲区，从而导致该侧墙的空蚀破坏，反弧末端下游侧墙是龙抬头明流泄洪洞掺气减蚀设计的重点和难点。

Generally the competitiveness, that is, the competence to transfer the relatively high cost and the profits of the oil-refining, the petrochemical and the down-stream processing industries will gradually go down while they are approaching the end-use customers, in which the petrochemical industry bridges the processing chain.

高油价对整个下游产业链都有着显著的影响。石油炼制、石油化工和下游加工行业应对高油价的能力，将随着与最终用户的不断接近而降低。

Transcription factors can control the transcription of their target genes when they bind to the DNA-binding sites on their promotors.

转录因子是一类可以通过与下游靶DNA结合，从而调控下游基因转录的分子，它们接受来自生长因子等方面的信号，再将这些指令具体地传递给直接执行功能的蛋白分子。

Transcription factors can control the transcription of their target genes when they bind to the DNA-binding sites on their promotors. They can transfer the messages of growth factors and so on to those effective molecules. Core binding factor al is such a kind of transcription factor, which can control the differentiation of osteoblasts peculiarly. They can induce the pro-osteoblasts or non-osteoblasts to synthesize and secrete most mineralize related proteins such as ALP, OC, OPN, BSP and so on, in order to differentiate to osteoblasts finally.

转录因子是一类可以通过与下游靶DNA结合，从而调控下游基因转录的分子，它们接受来自生长因子等方面的信号，再将这些指令具体地传递给直接执行功能的蛋白分子。cbfal是一种成骨分化特异性转录因子，可以诱导成骨前体细胞合成和分泌ALP、OC、OPN、BSP等矿化相关蛋白，向成骨细胞分化。

Direct left turn from driveways is considered as a contributor to accident and delay in at-grade intersections. Safety benefits of prohibiting direct left turn from driveways have been identified in many studies. Several engineering alternatives have been developed to accommodate prohibited driveway left turns. These alternatives are (1) right-turn followed by U-turn at the down stream intersection;(2) right-turn followed by median U-turn before the intersection;(3) right-turn followed by median U-turn after the intersection;(4) upstream Jug Handle, and (5) downstream Jug Handle.

鉴于直接左转机动车交通常是路口事故和延误的诱因之一，左转禁驶在许多研究中都作为一项安全措施处理，直接左转处理方式有多种，大致包括：(1)下游路口右转后U形调头直行；(2)当前路口右转后在下一路口前的隔离带打U形调头直行；(3)当前路口右转后在下一路口后的隔离带打U形调头直行；(4)在当前路口上游打&壶柄状&转行；(5)在当前路口下游打&壶柄状&转行。

On the basis of analyzing rationality, equality and reasonability of compensation to flood plain areas in the lower reaches of the Yellow River, the study is made on compensation methods.

在分析了黄河下游滩区实行补偿的合法性、公平性和合理性基础上，研究了滩区补偿的途径，提出了合理承担风险是应对黄河下游滩区洪水风险的主要办法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。