查询词典 yield point

In order to solve the problems such as multiple components in products, long time of rectification, high energy consumption, low yield and purity of product occurring during the production of p - octyl phenol, the effects of reaction conditions including reaction temperature, reaction time, the molar ratio of phenol to diisobutene on the conversion and yield of the product were examined.

为解决对辛基酚生产过程中精馏时存在组分多、精馏时间长、能耗高、产品收率和纯度低等问题，用正交实验探讨反应温度、反应时间、苯酚与二异丁烯原料摩尔比3因素对原料转化率和产品对辛基酚收率的影响。

The catalyst of RFG-DQ and DOCO(1) can both reduce the olefine content of gasoline dramatically, with the yield of LPG ,diesel and coke reduced and the yield of gasoline increased, as well as octane number of gasoline reduced more greatly.The olefine content of gasoline can be effectively reduced by optimizing the operation condition, lowering the reaction temperature, increasing the catalyst-to-oil ratio and using catalyst, which can improve the gasolines quantity and upgrade the gasoline.

通过优化操作条件、降低反应温度、增大剂油比和采用有效降烯烃催化剂等措施可以有效的降低催化裂化汽油的烯烃含量，提高催化裂化汽油的产品质量，达到我厂汽油产品升级换代的目的。

Study result suggest: The change of stock in RFCCU directly affect gasoline content. Gasoline content can be reduced through increasing the equilibrium activity of catalyst, controlling reaction level, increasing recirculating rate of gasoline and stability of gasoline level. Conclusions drawn from experiment is that optimization of operating condition has great effect on lowering olefine content of gasoline which can be reduced from 60% to 50%.Reducing reaction temperature is useful for lowering olefine content of gasoline, when the reaction temperature is raised, thermal cracking rate is higher than catalytic cracking rate, so that olefine content is increased. Raising catalyst-to-oil ratio is good for lowering olefine content. With conversion rate increased, the yield of LPG and coke is raised, the yield of gasoline is increased firstly and then decreased slightly, hydrogen transfer index is increased, so the olefine content is decreased.

研究结果表明：催化裂化装置的原料的变化直接影响到催化汽油的烯烃含量；可以通过优化催化装置的操作条件来降低催化汽油中的烯烃含量，其中通过提高催化剂平衡活性、控制反应深度、增加汽油回炼量、汽油深度稳定可以降低催化汽油烯烃含量，优化工艺条件对降低催化汽油烯烃含量有较大作用，汽油烯烃含量由60％降至50％左右；降低反应温度有利于降低催化汽油的烯烃含量，当反应温度的提高，热裂化反应速度提高的幅度大于催化裂化反应速度提高的幅度，汽油烯烃含量增加；剂油比的提高有利于降低催化汽油的烯烃含量，转化率提高，液化气产率提高，汽油收率先增加后略有下降，焦炭产率增加，氢转移反应指数提高，汽油烯烃含量下降；反应时间对产品分布及汽油烯烃含量有影响，增加提升管反应时间，液化汽、汽油产率提高，干气和焦炭产率增加。

Extensive Kuroshio-Oyashio transition zone is formed in North West Pacific as the result of widely mixture of the two water masses. As a result, North West Pacific becomes one of the most high-yield oceanic fisheries in the world. Ommastrephes bartrami (also called"Red oceanic squid", or in brief"squid") is the most high-yield cephalopods in this area.

由于黑潮暖流和亲潮寒流在西北太平洋形成广泛的交汇区，为海洋生物的生长和繁育提供了良好环境条件，使得西北太平洋成为世界海洋渔业产量最高的区域之一。

The primary forms of interest rate risk to which banks are typically exposed are:(1) repricing risk, which arises from timing differences in the maturity and repricing of bank assets, liabilities and off-balance sheet positions;(2) yield curve risk , which arises from changes in the slope and shape of the yield curve;(3) basis risk, which arises from imperfect correlation in the adjustment of the rates earned and paid on different instruments with otherwise similar repricing characteristics; and (4) optionality, which arises from the expressed or implied options imbedded in many bank assets, liabilities and off-balance sheet portfolios.

银行面对的利率风险主要表现为以下几种形式：（1）再定价风险，它产生于银行资产、负债和表外业务的期限不匹配和利率调整的幅度不一致；（2）收益曲线风险，它产生于收益曲线的斜率和形状发生的变化；（3）基本点风险，与再定价风险相似，它主要来自对不同金融工具收取和支付的利率不成比率的变动；（4）选择权，它产生于银行资产、负债、表外业务中存在的或明或暗的选择权。

The catalytic transformation pathway can change to decrease the yield of hydrogen and yield methyl-contained sulfides such as methyl mercaptan, dimethyl sulfide and dimethyl disulfide, but overlarge concentration of methanol would holdback the transformation of isobutyl mercaptan. The transformation of isobutyl mercaptan was favorable if the volume ratio of methanol and benzene was 0.2.The addition of methanol assume certain effect on the catalytic cracking of di-n-butyl sulfide in solvent benzene but without changing the cracking reaction mechanism of di-n-butyl sulfide.

甲醇也可以使异丁硫醇的催化转化路径发生改变降低硫化氢的产率，生成甲硫醇、甲硫醚及二甲基二硫化物等含甲基硫化物，但甲醇的浓度过高会抑制异丁硫醇的转化，在反应体系中当甲醇的体积占到溶剂苯体积的20%时对异丁硫醇的转化较为有利；甲醇的添加对丁硫醚在溶剂苯中的催化裂化有一定影响，但没有改变丁硫醚的裂解反应历程。

The result indicated that: the amount of the excess HF formed direct ratio to the yield of phosphorus pentafluoride and the optimum amount of the excess HF used is about 35%; the trickling rate of oleum shouldnt make the temperature of hexafluorophosphoric acid exceed 25 ℃ and the amount of oleum is 110% to 125% that of stoichiometry so that the content of phosphorus pentafluoride can be achieved 90%; the time and temperature of heating hexafluorophosphoric acid influenced both the yield and the content of phosphorus pentafluoride, and the optimum time should be about 30 minutes and the proper temperature was 148 to 153℃; when alcohol used asrefrigerant, the content of phosphorus pentafluoride was 94.03%, and the content can be up to 97.38%, provided that using liquid nitrogen as refrigerant.

通过实验发现，氟化氢用量与五氟化磷的产率成正比，最佳过量百分率宜在35％左右；发烟硫酸的滴加速度不能使中间产物温度大于25℃，发烟硫酸用量大于理论量10％～25％时，得到的五氟化磷纯度高于90％；六氟磷酸的加热温度对五氟化磷的产率和纯度均有影响，宜在148～153℃的范围内，加热时间应在30分钟左右；用工业酒精做冷凝介质得到的五氟化磷纯度最高只能到达94.03％，使用液氮做冷凝介质可以使五氟化磷的纯度达97.38％以上。

In the scorch stage, average yield of withered grass of second and third year growth prematurity type of Phleum pratense L. is 10672.5 kg/hm2, by cradling one time per year, average yield of wind hay grass is 7575 kg/hm2, the plant average height of selective colony is 160.0cm, the plant height of colony is rather equality. In the course of general nutrition composition analysis, discover that nutrition value of late-maturity type is higher than nutrition value ofprematurity type, coarse fibre and coarse protein and coarse fat of late-maturity type are 10.7%, 3.58%, 24.82% respectively, coarse fibre and coarse protein and coarse fat of prematurity type are 9.84%, 2.61%, 27.59% respectively, dry matter content of prematurity type is 92.63%, dry matter content of late-maturity type is 92.22%.

在枯黄期，第二、第三年生的早熟类猫尾草一年收割一次，枯草平均产量为10672.5 kg/hm~2，风干草平均产量为7575 kg/hm~2，选育出的群体平均高度为160.0cm，群体内植株株高较均一；在常规营养成分的分析中发现晚熟类的营养价值稍高于早熟类，晚熟类的粗蛋白是10.7％，粗脂肪是3.58％，粗纤维是24.82％，早熟类的粗蛋白是9.84％，粗脂肪是2.61％，粗纤维是27.59％，早熟类干物质含量92.63％，晚熟类干物质含量92.22％。

For understanding the yield and quality changes of spring wheat piled up in field after reaping in Qinghai province, we selected Qingchun 533, which was planted widely in Qinghai province, and Plateau 205(susceptible to preharvest sprouting), Plateau 115, Plateau 448 and Plateau 314 which were bred by our institute, piled up them as the quomodo farmer used, sampled them every nine days, and mensured yield, SDS sedimentation value and falling number value to trick the changes of wheat.

为了解青海省春小麦收割后田间堆放期间产量和品质的变化，选择近年育成的春小麦品种&高原205&、&高原115&、&高原448&和&高原314&以及曾为青海省主栽品种的&青春533&为材料，收刻后以农民常用的田间堆放方式进行堆放，每隔9d对其进行采样，测定产量、SDS沉淀位和降落数值的变化。

When introduced the ultrasound into EHD of acrylonitrile, the yield of propionitrile is increased, but the yield of hydrotrimer is decreased as compare to the silent condition.

对丙烯腈电化学氢化二聚反应生成己二腈的体系中施加超声的结果表明，对这一后置化学反应的体系，超声可以改变反应的机制，并最终对电解产物的分布产生影响。

We have limited budget let me know if you can do this competitively.

我们有限的预算让我知道如果你能做到这一点竞争力。

We don't know how other critters breathe--lizards, for example.

我们还不知道诸如蜥蜴之类的动物如何呼吸。