变化范围

The change of the length of circulation area is gentle because of the change of the angle of the blunt-body, from 30°-70°, the lenth is increased by the increment of the angle.

2回流区长度随钝体角度变化较为平缓，在30°～70°范围内，回流区的长度随角度的增大而增大。

Lobal Position System has brought great changes to the navigation field. It can provide precise position, speed and time to all global users.

PS为导航带来了巨大的变化，它在全球范围内为无限多的海陆空天用户提供精确的实时位置、速度和时间信息。

However, on an even smaller scale there is a great deal of microclimatic variation.

然而， 即使在很小的尺度范围内，也有大量的微气候变化。

An experimental apparatus to simulate large external diameter is built in our laboratory. On this apparatus a micrometrical experiment has been done.

在第六章，对在实验台上搭制的大外径模拟测量系统进行了介绍，并在该系统上进行了测微实验、长时间稳定性实验和大外径大范围变化的模拟对比实验。

With the initial glucose concentration varying within a range from 0 to 30 g/L,themaximal cell densities achieved in mixotrophic growth were able to be 3.4 folds and5.3 folds of those in photoautotrophic growth at light intensities of 160μE m-2 s-1 and16μE m-2 s-1,respectively.

葡萄糖浓度在0-30g/L范围内变化时，在光强160μE m-2 s-1和16μE m-2 s-1下，混合营养生长的最大细胞密度分别可以达到光自养生长的3.4倍和5.3倍。

15K to 318. 15K with the vibra-tingtube density meter(Anton Paar Model DMA602). Then the excess molal volumes V~Eof solutions and apparent and partial molal volumes of DMF over the range of molefraction 0-1 have been determined.

根据密度值求出溶液的超额体积VE；在全部浓度的范围内不同组成下DMF的表观摩尔体积φv及偏摩尔体积V_；及VE、φv和V_随组成变化的规律。

Based on the date of outcrop, log and lithology, sequence stratigraphic division and correlation were made on Neopaleozoic in south of North China Basin, and high-precision geologic correlation framework was built up in the basin.2. In the term of sedimentary features of Neopaleozoic in south of North China Basin, lateral variation of sedimentary facies was studied selectively in Benxi-Taiyuan Formation, Shanxi Formation, Lower Shihezi Formation, Upper Shihezi Formation and Shiqianfeng Formation. Lithofacies paleographic features and the sedimentary evolutionary process of Late Paleozoic in south of North China Basin were worked also.3. On the basis of sand-bodies Isopach figure drawing, the distribution of major reservoir sand-bodies of Neopaleozoic in south of North China Basin was studied. Basing on the distribution of sand-bodies in sequence stratigraphic framework, combining the development and distribution features of barrier and underwater distributary channel, there is a disquisition on the distribution regularity of pay reservoir sand-bodies of Neopaleozoic in this area.

以露头、测井和岩性资料为基础，对华北盆地南部上古生界进行了层序地层的划分与对比工作，建立了盆地范围内的高精度地层对比格架。2、根据华北盆地南部上古生界的沉积特点，按本溪组—太原组、山西组、下石盒子组、上石盒子组和石千峰组5个层组分别开展了沉积相的横向变化对比研究，并以此为基础探讨了华北盆地南部晚古生代的岩相古地理特征及其沉积演化过程。3、以编制砂体等厚图的方式研究了华北盆地南部上古生界主要储集砂体的平面展布规律，并以层序地层格架下的砂体展布研究为基础，从沉积体系控制下的砂体分布特点出发，结合障壁岛与水下分流河道的发育与分布特点，系统深入地开展了区内上古生界有利储集砂体的分布规律研究。

The relationship of the nitridation rate of Al-Mg-Si alloys with temperature from room temperature to 1300℃ was investigated by TG experiments.

通过程序升温法热重实验，考察了Al-Mg-Si合金从室温至1300℃范围氮化反应速率随温度的变化规律，实验验证了Al-Mg-Si合金的直接氮化符合阿累尼乌斯公式。

The same methods were used to study toluene dinitration, and the results indicated that the thermal runaway risks of these reactions were low too; prolonging dosing duration was helpful to the conversion of all nitrotoluene; decreasing the molar ratio of nitric acid to mononitrotoluene would make an insufficient conversion; among the given temperatures, rising reaction temperature couldn\'t markedly change the yield coefficient, but lead more heat generation and higher thermal runaway risk.

采用同样的方法对二段硝化反应进行研究，结果表明：二段硝化反应的热失控危险性也较低；延长加料时间，有利于反应完全；而随着硝酸与一硝基甲苯摩尔比的减小，硝化难以进行完全；在选定温度范围内升高温度，产物得率无显著变化，反而易导致放热加剧，增加体系的热失控危险。

Though the changes of all indexes are within the range of nonsaline and nonsodic soils, the soils affected by salt in glyphosate aqueous solution tend to salinesodic soils.

虽然土壤各项盐化和碱化指标的变化都还在非盐化和非碱化土范围内，但有盐化和碱化的趋势。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。