查询词典 precipitation

In the article, we analysised the rainstorm process using conventional information, encryption data, strength ,speed and wind profile data of Doppler radar, discussed the atmospheric circulation system in the westing process of the subtropical high; revealed the different reasons caused two heavy precipitation (more than 10 mm per hour) and the possibility of small and medium-scale system existed, displayed the vertical distribution of the wind field over the stations in the rainstorm process and the close relationship between the transmission., strengthen of the level air-jet and the heavy precipitation, and then proved that the heavy precipitation was caused by the transmission and strengthen of the low-level jet.

利用常规资料，加密观测资料，多普勒雷达强度、速度和风廓线资料等对本过程进行周密细致的分析。探讨了在副热带高压西进过程中与之相配合的大气环流形势和影响系统；揭示了造成两次强降水（1小时大于10 mm以上）的不同原因和中小尺度系统存在的可能性；展示了暴雨过程中测站上空垂直风场的分布特点以及风廓线高低空急流下传和加强与强降水的密切关系，证明了强降水的产生主要由低空急流的下传和加强引起的。

Observation of radar and intensive surface wind of 0505 typhoon Haitang is used to analyze the relationship between radar reflectivity and observed precipitation and the relationship between mesoscale surface stream field and heavy rainfall. The analysis shows that when the Doppler radar reflectivity reaches 50 dbz, it has a good correspondence to the heavy one hour precipitation. Besides, heavy precipitation is also related to the mesoscale cyclonical current and confluent currents, it occurs near the mesoscale cyclonical or confluent current appearing at the same time.

利用严重影响浙江东南地区的2005年05号台风的雷达和地面加密风场资料，分析对比台风中尺度暴雨过程中雷达回波与实况降水、中尺度地面流场与暴雨之间的关系，结果得到：多普勒雷达近地面强回波带或中心往往达到50 dbz时，与一小时的强降水区有很好的对应关系，暴雨中心区也与地面加密的中尺度流场中出现的中尺度气旋性环流和汇合气流有关，强暴雨区落在同时刻中尺度涡旋或汇合线附近。

This method improves the computational accuracy, embodies the precipitation changes with topographty and the distributive incontinuity of precipitation, and solves the problem of the precision of the spatial interpolation of precipitation under complicated topographty condition.

该方法提高了计算的准确性，体现了降水随地形的变化以及在空间分布上的不连续性，有效解决了复杂地形条件下降水空间插值精度不高的问题。

The effect of topography on precipitation can be extract from the precipitation.Secondly, considering the incontinuity of the precipitation distributing, we use improved the Stepwise Interpolation Approach, SIA, to combine with the multi-variable successive regression equations.

其次，充分考虑到降水分布的不连续性，利用逐步插值方法与多元回归方程结合，不但取得了与事实相符的计算结果，而且显著地提高了年降水量空间分布的计算精度。

Having studied the relation of oil well paraffine precipitation and the rod load, the paper finds one new method to predict the oil paraffine precipitation ---statistics comparison of the indicator diagram, and calculates the paraffin removal cycle as well as the paraffin removal time And predicts the oil well paraffin precipitation; Combined with the test data of oil field and the basic production parameter of the oil well system, the paper has carried on close analysis of the efficiency of the single well system, and obtained each target reflecting the system operation; the efficiency of the oil pumping mechanical well system has been improved and the submersion pressure mathematical model has been completed, and the author draws up the dynamic control chart of sub-area system efficiency, thus raises the management level in the oil well system efficiency.

通过研究油井结蜡速度与抽油机悬点载荷的关系，将油井结蜡与示功图结合到一起，找到一种对油井结蜡预测的新方法——示功图统计对比法，计算出清蜡周期与清蜡时间，预防了油井蜡卡；以现场示功图为依据，结合生产参数对抽油机井系统效率进行实测分析，完善系统效率与沉没压力的数学模型并绘制油井系统效率动态控制图，对系统效率进行了检测评价与优化。

The effects of solution\'s pH value, mol ratio between phenyl aldehyde and L-Arginine, concentrations of sodium chloride, ammonia chloride andL-Lystine, initial concentration of L-Arginine on precipitation rate of a -tolylene arginine were investigated, the results indicated that phenyl aldehyde precipitation method\'s appropriate pH value was higher than 11, suitable mol ratio between phenyl aldehyde and L-Arginine was 1.25, initial concentration of L-Arginine was must higher than 15g/L, sodium chloride had little effect on precipitation rate, on the contrary, ammonia chloride and L-Lystine had great effect on it, both of them must be eliminated; At the same time, adsorption isotherm at 25 C of L-Lystine on anion exchange resin A was measured, the result showed that the maximal equilibrium adsorbance was 30mg/g, the influences of solution\'s pH value, temperature, concentration of chloride ion on adsorption of L-Lystine by anion exchange resin A were also studied, the results indicated that appropriate operational pH value was 0.5 0.2, the effect of temperature on adsorption ratio was little, process could be operated at room temperature, the concentration of chloride ion must be eliminated.

考察了溶液pH值、苯甲醛与L-精氨酸摩尔比、氯化钠与氯化铵浓度、L-赖氨酸浓度、L-精氨酸初始浓度对苯甲醛沉淀L-精氨酸的影响，结果表明，沉淀反应的适宜pH值大于11，苯甲醛与L-精氨酸的适宜摩尔比为1.25，(来源：Aa6BC论文网www.abclunwen.com)L-精氨酸适宜的初始浓度在15g/L以上，氯化钠的存在对沉淀率基本上没有影响，而氯化铵和L-赖氨酸的存在使沉淀率下降；同时测定了25℃时阴离子交换树脂A吸附L-赖氨酸的吸附等温线，表明其最大平衡吸附量为30mg/g，考察了溶液pH值、温度、氯离子浓度对阴离子交换树脂A吸附脱除L-赖氨酸的影响，结果显示从L-精氨酸和L-赖氨酸混合液中吸附分离出L-赖氨酸的适宜pH值为10.5±0.2，温度对L-赖氨酸吸附率影响不大，吸附过程可在室温下进行，氯离子的存在使L-赖氨酸的吸附率降低。

For strong convective weather , it classified all historical sample events into 4 weather patterns (like northwest , trough area ,west wind and southwest current), established 4 characteristic fields of 400hPa height of HLAFS , then according to the principle of the pattern match calculate and compare the real-time HLAFS forecast products-2-using the similar method inside the big and small key areas , establish forecast equation , finally gain conclusion .To duststrom weather, the historical samples were sorted into duststrom and severe duststrom types in 5 regions (they are whole area, west, central, middle-west and middle-east of Inner Mongolia ),moreover set up different sample databases about ECMWF fields (including 500hPa height, 850hPatemperature and sea-level pressure).In order to making duststrom forecast at different time level , we first filtered the real-time data by FAX data ,and then used the method of similar range degree to compare the historical data to the actual data of ECMWF .To precipitation weather ,they were divided into 2 types that suit or unsuit airplane artificial precipitation stimulation in line with their emergence time and district .The appropriate weather physical factors come from T106 were chosen to establish the artificial precipitation stimulation prediction model . In the actual application , we can get prediction result as long as use the real-time forecast data of T213 in the prediction model .

针对强对流天气将历史样本天气分为西北气流型、槽区型、西风气流型和西南气流型等4个类型，并建立其HLAFS资料400hPa四种特征场，按照模板匹配的原理，用相似分析方法在大、小两个关键区中对实时HLAFS预报产品进行计算、比较，再建立预报方程，得出结论；对沙尘暴天气将其按区域分为全区、西部、中部、中西部以及中东部5类，再按强弱分别分为强和一般2类，建立ECMWF的3个场(500hPa高度场、850hPa温度场和海平面气压场)的历史资料库，在用传真资料消空之后，用相似离度方法计算实时ECMWF资料，做出不同时次的预报；对降水天气按出现时间和区域分为适合和不适合飞机增雨作业2类，选择T106资料中恰当的气象物理量因子，用BP神经网络算法建立人工增雨降水预报模型，实际应用中将实时T213相关预报资料代入预报模型即可。

The culture filtrate of strain LN-176 was tested for light absorption at 260nm and 280nm, and the results showed that the protein content in the culture filtrate significantly increased. After ammonium sulphate precipitation, the supernatant and the precipitation were separated to testify their antagonistic activity, and it was found that the precipitation was inhibitory to Ustilago hordeum , but the supernatant not.

LN-176菌株的发酵液在260nm和280nm下进行吸光度测定，结果表明发酵液中蛋白质含量明显升高；发酵液经硫酸铵盐析后，取上清液和沉淀物分别做抗菌试验，发现沉淀物对青稞散黑穗病菌有拮抗活性而上清液无活性。

The increasing of soil Bray-1 phosphorus was significantly correlated to the dissolved labile phosphorus (p 0.001), and the phosphorus leaching loss under the precipitation of two-times of normal precipitation is more than 3.6 times than that of normal precipitation.

生物固形物的施用会造成表层0-10 cm土壤Bray-1磷的累积，由於土壤中Bray-1磷浓度与洗出液中溶解性反应磷的流失量有显著相关(p 0.001)，且两倍雨量淋洗下洗出液中磷的流失量是正常雨量下的3.6倍，因此，生物固形物的施用仍须考量磷流失的风险。

The result of correlation analysis is as follows, the series of Sitobion avenae of emergence size and period correlate with temperature, precipitation, a sum of heat and a sum of rain. Weather state factor of temperature-precipitation can be used to forecased the population of Sitobion avenae. A problem of risk probability can be settled by the grade series of calculation and stochastic simulation, order transfer of Markov chain, so table of risk value of cantemperature, precipitation and Sitobion avenae.are list This is a new approach about PRA in plant protection.

相关分析的结果是麦长管蚜发生量和发生期等级序列与温度、降水量等级序列及积温、积雨值密切相关，通过温度-降水量天气相关状态因子可以预测有害生物的发生状况；通过随机模拟风险因子各个序列和马尔柯夫链状态转移概率的计算，得出了有害生物风险分析和预测过程中较难估算的风险概率，并计算出了北京市温度、降水量和麦长管蚜不同等级的发生风险值表，这在植保有害生物风险分析的方法上是一种新的探索。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。