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So the paper thinks of aircraft sound source as motorial dot source to research the acoustic field around airport, and analyses the impact of the aircraft velocity against the acoustic field around airport stressfully.

论文首先将飞机声源作为运动点源，考查对机场周围声场的影响，并重点分析飞行速度对机场周围声场的影响。

The microorganism can utilize succinimide as a sole carbon source and nitrogen source, which indicates the presence of a complete transformation pathway of succinimide, and a hydantoin-cleavi...

真养产碱杆菌 1 1 2R4 能在以琥珀酰亚胺为唯一碳、氮源的培养基上生长，表明该菌中存在琥珀酰亚胺完整的转化途径。

Based on the analysis of REE geochemical characteristics of different geologic rocks in Pangxidong silver deposit, the genesis of granitic wallrocks and the source of mineralised material are discussed. It indicates that Yingqiao granite belongs to syntectic granite of mixed crust mantle source.

分析了粤西廉江庞西垌银矿床不同地质体岩石稀土元素地球化学特征，对矿床围岩花岗岩的成因以及矿床成矿物质来源进行了讨论，认为英桥花岗岩体为壳幔混合源同熔花岗岩。

As the value of the syzygial tide is large,the seven sorts of effects on seismic source process of the syzygial tide affecting the seismic source system are great,and therefore the correlation between the syzygial tide and earthquakes is relatively good.

由于朔望潮量值大，所以它作用到震源系统上影响震源过程的7种效应也大，因而朔望潮与地震的相关性较好。

In optimal condition, the biosurfactant concentration can reach 2.2g/L in 150h with 20g/L tetradecane as sole carbon source, the biosurfactant concentration was stable at 165~220mg/L with 20g/L crude oil as sole carbon source.

4在优化条件下，以20g/L十四烷为碳源，培养150小时，糖脂表面活性剂浓度可达到2.2g/L，以20g/L石油为唯一碳源，糖脂浓度稳定在165～220mg/L。

Inoptimal condition, the biosurfactant concentration can reach 2.2g/L in 150h with 20g/L tetradecane as sole carbon source, the biosurfactant concentration was stable at 165~220mg/L with 20g/L crude oil as sole carbon source.

4在优化条件下，以20g/L十四烷为碳源，培养150小时，糖脂表面活性剂浓度可达到2.2g/L，以20g/L石油为唯一碳源，糖脂浓度稳定在165～220mg/L。

The powder of zinc oxide was synthesized in hydrothermal conditions with Zn(NO_3)_2·6H_2O as zinc source,and tetrapropylammonium hydroxideand tetramethylammonium hydroxideas alkaline source.

以六水硝酸锌为锌源，氢氧化四丙基铵和氢氧化四甲铵分别为碱源，进行了氧化锌粉末的水热制备。

Trachyte has as the same isotope feature as the basalts, indicating that they were derived from the same source, and resulted from products during different evolution phases of the same magma source, which is similar to that of the basalts in Emeishan.

该区粗面岩类与玄武岩的同位素特征类似，说明二者具有相同的源区，并可能代表了同源岩浆不同演化阶段的的产物，这与峨眉山地幔柱岩浆活动的玄武岩与粗面岩所具有的演化关系相同。

During the preresearch on the testing well location selection in the south of western depression, three kinds of process and research work have been done according to the log datum on Well Moushen:(1)Formation analysis and formation pressure evaluation which verdicts that formation under 5198.5m is not of Trias, whereas is still in Permian, and abnormal formation pressure phenomenon exists in Members 1 and 3-4 of Shahejie Formation;(2)Re-interpretation of oil and gas formation and evaluation of reserve formation;(3)Evaluation of oil source rock. Members 1 and 3-4 source rocks of Shahejie Formation have good capability of oil generation.

在东濮凹陷西洼南部探井选位的前期研究中，根据该井的测井资料情况，做了三方面处理和研究工作：①地层分析和地层压力评价，认为5198.5m以下的地层不是三叠系而仍是下第三系，沙一段和沙三段—沙四段存在高压异常；②重新解释油气层和评价储集层，在沙三段—沙四段发现6层12.87m厚可疑油层；③评价油源岩，认为沙一段和沙三段—沙四段油源岩具有较好的生油能力。

The results of single-factor-experiment showed that the corn straw as the carbon source, tryptone as the nitrogen source, initial moisture content of 80% and initial pH 9.0 were the optimal conditions for xylanase production.

单因素优化试验表明：以玉米杆为碳源，胰蛋白胨为氮源，初始水分含量80%，初始pH值9.0为最佳产酶条件。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。