变化范围

On the basis of a great deal of the experimental data processing and analysis, the combustion converted account reaction rate constant, the unstable heat-exchange coefficient variation law between the airflow and the roadway rock and the codomain determined under different fire conditions have been provided with the correctness of the theoretical calculation formula for description of the airflow energy loss of the fire area tested and verified, a large number of the basic data concerning mine fires obtained.

通过大量实验数据的整理分析，给出了矿井火灾时期燃烧折算反应速率常数、风流与巷道岩石间的不稳定换热系数的变化规律及不同火灾条件下的取值范围，验证了火区风流能量损失理论计算式的正确性，并获得了大量的矿井火灾基础数据。

Collector current is proportional to concentration of dopamine in the range over 5.0×10〓mol/L to 5.0× 10〓mol/L and remains independent of ascorbic acid concentration to approximately 5. 0×10〓mol/L.

由于在收集电极上消除了由电位变化引起的充电电流和阴极-阳极工作时的反馈作用，多巴胺的检测限可达7.5×10〓mol/L，线性范围为5.0×10〓～5.0×10〓mol/L。

You can do that by pressing alt then clicking the stopwatch left to the colorize Hue property. You'll see the colors of the compositions swinging between red and velvet.

你可以按下Alt键并用鼠标点选colorize Hue参数左边的小闹钟图表来激活增加表达式功能，你可以看到compositions里元素的颜色在色轮范围内变化。

The research shows that gas concentration shows generally an increasing tendency along the working face airflow direction, from 0.095% to 0.18%, under the effect of gas drainage points, up-and-down changing locally; gas distribution in a transect of working face is unequal, under the effect of gas emission, ventilation and drainage, the gas concentration near coal wall is larger than that near goaf, which is a concave function distribution within a distance of 1876.5 m from the inlet of working face, after greater than 76.5m, which is a decreasing distribution from coal wall to goaf.

研究表明，该工作面瓦斯体积分数沿风流方向总体呈逐渐增加趋势，介于0.095%~0.18%之间，受瓦斯抽放点的影响，局部有起伏变化；工作面横断面瓦斯体积分数分布不均匀，受瓦斯涌出、通风和抽放的影响，靠近煤壁侧瓦斯体积分数要高于采空区侧，在距离进风口约18~76.5 m范围内为凹函数分布，大于76.5 m之后，从煤壁至采空区为单调下降函数分布。

Lesions range from small, scattered, and unilateral to sizable, bilateral, and confluent.

病变的累及形态及范围变化较大，从小片状、散发的、单侧性到大片状、双侧、融合的病灶都可以出现。

Geoid heights in the conterminous United States range from about -8 meters to -53 meters, and display considerable variation in the mountains.

大地的高度大约从美国范围城关- 8米，-53米，显示高度的变化在群山之中。

Analyzed the changing of energy loss in turbine cascade with different backward wedge angles,and achieved the range of the backward wedge angles corresponding of the minimum energy losses on three typical sections in the turbine cascade.

分析了叶栅能量损失系数随不同后楔角的变化，得到了在该涡轮叶栅内对应最小能量损失的3个典型截面上的后楔角的范围。

Analysis of numerical simulation shows that coupling ratio of the coupler is flattened in a wider range of wavelength.

理论分析显示，该耦合器的耦合比在一个较宽的波长范围内变化较小，具有波长响应平坦特性。

The vibration is varied in frequency over a range on the order of 5 to 2, 000 cps, usually at a constant octave

振动的频率在5到2000赫的范围内变化，通常用一常值的八阶变化率。

Ammonium concentration was found to be an important chemical factor affecting Cress Germination Index ...

本文提出NH+4 N作为本堆肥工艺的腐熟度评价指标，腐熟堆肥的NH+4 -N含量范围为 0 5～ 1 4mg g ，其变化与初始堆料有关。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐