查询词典 low-temperature

By taking cotton fiber in high yield cotton field of north Xinjiang as the object, the niche-fitness theory were introduced, through analysis the niche-fitness of cotton fiber in three mono-topping and multi-topping intercrop system treatment, the result showed, it is acceptable that evaluate cotton fiber quality by niche-fitness, the niche-fitness value of cotton fiber at the middle part of the cotton plant is the biggest that topping inJul.10th and Jul.25th in this three treatment, moreover, with the increase of topping times, compare with it's top part of cotton plant, the niche-fitness of cotton fiber at the low part of cotton plant have a raise tendency, the niche-fitness value of top and low part of cotton plant in multi-topping treatment is bigger than what of mono-topping.

以北疆高产棉田棉纤维作为研究对象，引入生态位适宜度理论，对三个打顶次数不同的处理的棉花群体棉纤维生态位适宜度进行分析研究，结果表明：用生态位适宜度来评价棉纤维品质是切实可行的，三个打顶处理中7月10日和7月25日打顶棉株棉纤维生态位适宜度均为中部最高，并且随着棉花群体打顶次数的增加，其下部棉纤维生态位适宜度较上部有逐渐增高的趋势，与一次打顶相比较，其二、三次打顶棉株上、下部棉纤维生态位适宜度均升高。

It is suggested that the super low interfacial tension can be obtained with a low concentration of the surfactants by selection of a proper combination system of surfactants.

研究了三元复合驱的技术特点，指出选择合适的表面活性剂复合体系可在低表面活性剂浓度下，获得超低界面张力。

By improving and rebuilding the previous mid-latitude model, we extend the model to high latitude and low latitude, respectively. The extension to high latitude mainly includes the effects of convection electric field and particle precipitation. The low-latitude extension primarily takes account of the configuration of magnetic field and interhemispheric coupling.

在对原有中纬电离层模型改造和重建的基础上，将该模型分别向高纬和低纬扩展，模型向高纬的扩展主要考虑了对流电场和粒子沉降的影响，模型向低纬扩展主要考虑了磁场位形、共轭半球的影响。

The results showed that, there were severe problems of low impact energy and low retained dose in interior surface PⅢ of cylindrical bore.

导致内表面注入剂量和注入能量偏低的根本原因在于筒内鞘层的扩展特性和交叉重叠。

In Sulige gas field, due to low permeability, low productivity and severe production decline, intermittent production began soon after production.

苏里格气田低渗、低产、低效气井压力下降快，产量递减幅度大，稳产阶段短，恢复程度低，为保证进入流程，在生产经过一段时间后便改为间歇生产。

McJob is slang for a low-paying, low-prestige job that requires few skills and offers very little chance of intracompany advancement.

McJob 指那些在服务行业中低收入的工作。这些工作往往需要很少的技能条件，也很少有晋升机会。

In the matching stage, the angle of feature vectors is used as the similarity measure in the high dimensional space directly. This similarity measure is invariant to the linear transformation of feature vectors. Compared with SIFT and normalized correlation, the proposed method needs no primary features such as edges, corners, gradient or shapes which are very unstable in low contrast and low NSR images.

在匹配过程中，以向量之间夹角的大小作为相似度度量，直接利用图像的灰度信息在高维向量空间中考虑图像之间的相似度，克服了在低照度、低信噪比的图像中求边缘、角点、梯度和形状等特征的困难，不受向量模大小以及向量平移的影响，即相似度的计算是线性光照不变的。

Aimed at low-SNR infrared images,the principle,invariant property and computational methods of Pseudo-Zernike moments are analyzed,and a method for low-SNR infrared target detection based on Pseudo-Zernike moments is proposed.

针对低信噪比红外目标图像，分析了伪Zernike矩的基本原理、不变性和计算方法，提出了低信噪比红外目标检测的伪Zernike矩方法，并比较了模板匹配、Hu矩、伪Zernike矩方法的目标检测效果。

Dependency Inversion Principle states that we should decouple high level modules from low level modules, introducing an abstraction layer between the high level classes and low level classes.

依赖倒置原则声明了我们应该将高层模块和低层模块解偶，在高层类和低层类之间引入一个抽象层。

In recent years, it is moreand more intensive for diesel engine to be required for low fuel consumption,heavy power , low exhaust emission, Iow noise ,and so on.

微电子技术的迅速发展代替了传统的机械和液力控制技术，它在内燃机上得到了广泛的应用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。