查询词典 yield to

Based on the experience and methods summed up by other researchers, the technique of cell culture was employed to study bovine follicular oocytes maturation, fertilization and the development of earlier embryo in vitro. The objective of this research is to upbuild and perfect a set of high-and-new-tech systems to obtain high-yield and high-quality bovine embryo, to provide technical operational regulations and ways and means to embryo engineering in practical production, to accumulate data for theoretical research.

本研究在总结前人研究的基础上，应用体外培养技术对牛卵母细胞体外成熟、体外受精及早期胚胎体外发育作了进一步研究，旨在建立健全一套完整的体外生产高产优质牛胚胎的高新技术体系，为胚胎工程和生产实践提供技术操作规程和方法，为理论研究积累资料。

In the course of establishing standard operating procedure, The temperature, time , the feasibility without decorticating and efficiency were investigated when alliinase was deactivated used a dry heating apparatus in tunnel type, but the efficiency can be achieved less than 70%, need to be improved; The reformative cribriform plate has been proved to be good in practice result in pulping enzyme-deactivated garlic without dehulling; The extraction efficiency achieved more than 90% when volumic ratio of 20% alcohol and water is 3 I 1 and 2:1 was adopted to extract alliin two times respectively; During exact filtration, the ratio of diatomite in precoating and filtration was 3% and 1% respectively, the losses of alliin adsorbed by diatomite in extraction solution were not remarkable. In the stage of alliin isolation by ion exchange resin, three simple and sensitive detected measures were successfully adopted to control the whole process; the efficiency of alliin isolation was similar to laboratory results; The alliin yield was over 50% in acidic fractions and the purity quotient of alliin achieved above 50% after drying; Furthermore, the phenomenon was found that losses of alliin were seriously affected by the temperature and time periods in concentration.

在制定中试生产标准操作规程中，考察了隧道式干热烘干机杀酶的温度、时间和效率，干热灭酶效率只能达到70%，待改进；改良的筛板使带皮打浆效果良好，证明非脱皮熟蒜打浆的可行性，减少了工序，降低了成本；提取过程中，20%酒精分别1∶3和1∶2提取2次，效率达90%以上；硅藻土板框过滤时，探索了精滤过程中提取液中预涂和过滤时硅藻土的比例分别为3%和1%，并考察硅藻土对蒜氨酸的吸附损失，滤液澄明度良好，蒜氨酸损失很少；在树脂吸附分离阶段，采用三种简便灵敏检测手段控制生产过程，分离蒜氨酸的效果与实验室一致，酸性流分中蒜氨酸收率可达50%以上，干燥后蒜氨酸纯度达50%以上；试验发现浓缩蒜氨酸洗脱液时温度和浓缩时间对蒜氨酸损失的具有很大影响。

By analyzing the cultivated land data from different sources in different phases after 1949,the paper considers the statistics with more errors happens during 1960-1985.According to the systematic data on land use gathered in the 1996 survey,based on reverse deduction of the cultivated land area from 1986 to 1996,and deduction of the cultivated land area from 1960 to 1985 by stages by employing yield of grain,this paper redescribed the actual changing trend and character of Chinese cultivated land and analyzed the driving force of the policy relative to cultivated land to cultivated land area change.

针对该问题，论文对1949～2003年不同时期不同来源的耕地数据系列进行分析，认为统计数据存在问题较多的时期为1960～1985年，并采用粮食产量对耕地面积进行了分时期的反演，对于1986～1996年间的耕地数量则按照全国土地利用详查统一到1996年的结果再进行反推，由此重新刻画建国以来中国耕地资源数量变化的趋势和特征，并结合不同时段耕地相关政策对耕地数量变化的驱动作用进行分析。

By analyzing the cultivated land data from different sources in different phases after 1949,the paper considers the statistics with more errors happens during 1960-1985.According to the systematic data on land use gathered in the 1996 survey,based on reverse deduction of the cultivated land area from 1986 to 1996,and deduction of the cultivated land area from 1960 to 1985 by stages by employing yield of grain,this paper redescribed the actual changing trend and character of Chinese cultivated land and analyzed the driving force of the policy relative to cultivated land to cultivated land area change.

针对该难题，论文对1949～2003年不同时期不同来源的耕地数据系列进行分析，认为统计数据存在问题较多的时期为1960～1985年，并采用粮食产量对耕地面积进行le分时期的反演，对于1986～1996年间的耕地数量则按照全国土地利用详查统一到1996年的结果再进行反推，由此重新刻画建国以来中国耕地资源数量变化的趋势和特征，并结合不同时段耕地相关政策对耕地数量变化的驱动作用进行分析。

According to the systematic data on land use gathered in the 1996 survey,based on reverse deduction of the cultivated land area from 1986 to 1996,and deduction of the cultivated land area from 1960 to 1985 by stages by employing yield of grain,this paper redescribed the actual changing trend and character of Chinese cultivated land and analyzed the driving force of the policy relative to cultivated land to cult

结果表明，1949年以来中国耕地资源数量呈现波动性变化，但在1979年之前总体上是增加的，自20世纪80年代起呈现缓慢下滑，1999年后由于生态退耕等原因引起耕地数量迅速减少，由此导致的中国粮食安全问题与耕地安全问题值得关注。

This paper aimed at the Daqing region based sauce, sweet paraffin base crude oil, the main tasks and objectives will be: 4 million tons / year, 330 days a year, total starts, top of the tower to take heat, the first mid-back to take heat, second heat to take the middle back the distribution of 5:2:3, based on the given crude true boiling point distillation data and products Engler distillation data to calculate the product of various complex decision to cut the program data to calculate the product yield, full-tower heat balance calculation, rendering the whole tower of steam , liquid load distribution.

本文设汁主要针对大庆地区低硫石蜡基原油，主要任务及目标为：400万吨/年，按每年开工330天计，塔顶取热、第一中段回流取热、第二中段回流取热分配为 5：2：3，依据所给的原油实沸点蒸馏数据及产品的恩氏蒸馏数据，计算产品的各物性数据决定切割方案，计算产品收率，进行全塔热平衡计算，绘制全塔汽、液相负荷分布图。

For each strategy, a corresponding exploitation plan of groundwater was designed. Then each designed exploitation plan (except scheme 3) was put into the model for calculation and simulation. The analysis on the forecasting results every plan indicates that:(1) Shuting down the self-provided wells is the most direct and effective method, playing an important role in the land subsidence prevention.(2) The resumption of compressed soil by groundwater artificial recharge is limited. So the artificial recharge can\'t provide essential effect for the resumption of land subsidence, unless the artificial recharge is much more than the groundwater withdrawal.(3) The method of "adjusting the exploitation stratum of groundwater to the shallow" has an obvious effect on the land subsidence prevention.(4)"Sand wells" can increase the leakage recharge for confined aquifer, and thus can slow and prevent the development of the land subsidence.(5) For the groundwater exploitation in Xi\'an, emergency self-provided wells should be managed according to the well spacing of 1600m, 2000m and 1600m, respectively, in the river terrace area, alluvial-proluvial fan area and loess tableland area to exploit the first confined groundwater. Corresponding individual well yield can be set as 2500m~3/d, 1500 m~3/d and 200 m~3/d. Make emergency self-provided wells pump in the dry year and stop pumping groundwater to restore and conserve underground water sources in average years and wet years. In this way, groundwater withdrawal of 162000m~3/d can be obtained to provide for the supplement of water supply in Xi\'an. As a result, the water supply stress can be released in dry years. The groundwater depression formed in the exploiting year can resume in 3-4 years. At the same time, this exploitation manner will not lead to obvious land subsidence.

本文利用所建的模型预测了现状开采条件下未来20年的地下水位和地面沉降的变化，在此基础上，提出了防治西安市地面沉降的五个地下水开采方案，利用所建的地面沉降模型对各个设计方案其进行了模拟和预报，对预测结果的分析表明：①封停自备井是防治地面沉降最为直接和最有效的对策，对防治地面沉降起着最为积极的作用；②采用人工回灌方法使被压缩的土层得到的恢复是非常有限的，对地面沉降不能起到根治作用，只有回灌量明显大于开采量时才能有一定的效果；③&调整开采层次，在浅层取水&对防治地面沉降的效果十分明显；④布设&砂井&可以增加对承压含水层的越流补给量，从而可以有效地缓解和控制地面沉降的发生和发展；⑤对西安市的地下水开采，可在河流阶地区、冲洪积扇区和黄土塬区分别采用1600m、2000m、1600m的井间距布置应急自备井，分别采用2500m~3/d、1500 m~3/d和200 m~3/d的单井开采量，开采第一承压水，在平水年或者丰水年不开采，涵养地下水源，在枯水年启动这些应急自备井开采，在输出分析范围内共可获得162000 m~3/d(5913万m~3/a)开采量，可以有效地补充西安市的供水水源，缓解供水紧张局面，开采年开采导致的下降的水位可在停采3～4年后得到基本恢复，同时，这种开采方式不会造成大的地面沉降量。

Determination of photosynthetic pigments used 80% of acetone extraction method directly and the photosynthetic characteristics of using Li-6400 portable photosynthesis detector. Results showed that Returning the right amount maize straw stem into field was able to significantly restraint this year winter wheat flag leaf Chla degradation, to raise the flag leaf Chla/Chlb in the watery metaphase and late stage, to effectively restraint the photosynthesis rate decrease in the watery stage, to increase the pertinence of photosynthesis rate and pigment compared to others. However returning more maize straw stem into field was able to accelerate the retrogradation of chlorophyll and photosynthesis rate decrease then the yield declined.

结果表明：适量的玉米秸秆还田(9 000 kg/hm^2)可显著抑制接茬冬小麦灌浆中后期旗叶Chla降解，提高小麦灌浆中后期旗叶Chla/Chlb的比值，有效抑制灌浆期旗叶光合速率的下降，与其他处理相比，其光合速率与叶绿素的相关性得到加强；过量的秸秆还田(15 000 kg/hm^2)，加速了光合色素的降解，使得光合速率下降，产量降低；在各处理中，处理Ⅱ(9 000 kg/hm^2)产量最高。

Wanxing seafood supervisors professional cooperatives JIN Cong Lin told reporters that members of cooperatives to invest a total of more than 150 million, mainly to the sea mussel, clam farming, aquaculture area to expand from less than 60 acres to the present nearly 300 acres, is expected to yield can be achieved 220 tons, 2.2 million yuan output value.

万兴海产专业合作社的监事长林金聪告诉记者，合作社的成员总计投资150多万元，主要进行海蛏、蛤蜊的养殖，养殖面积从不到60亩扩大到现在的近300亩，预计产量可以达到220吨，产值220万元。

At present our country ox breeds in be in rapid development, breed means to come loose by individual liberty raise the development that changes way to intensive, the administrative index with urgent scientific need undertakes guidance to breeding milk cow, suckle quantity, improvement in order to raise the yield of milk cow to breed composition is mixed reduce a disease, improve crop, quality and beneficial result thereby.

目前我国牛养殖正在处于快速发展中，养殖方式由个体自由散养向集约化方向的发展，迫切需要科学的管理指标对养殖奶牛进行指导，以提高奶牛的产奶量、改善乳成分和减少疾病，从而提高产量、质量和效益。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！