This paper analyses the physical constant constructing by dimensional method and introduces the important mean of dimension of quantity in physical constant constructing.
采用量纲的方法分析物理常数的构造，讨论了物理量的量纲在物理常数构造中的重要意义。
This may require a compromise on the quantity dimension of its growth outcome.
这可能需要在增长规模上做出妥协。
Extracting the primary components of data is to decrease the dimension of the data in order to decrease the quantity of calculation.
数据的主成分提取是为了降低数据集的维数，减少计算量。
The re-bar binding should be executed according to the requirements of the drawing. All specification, dimension, quantity and spacing should be checked correct.
钢筋绑扎将按图纸要求进行，所有规格、尺寸、数量、间距必须核对准确。
Two-dimension groundwater quantity and quality model in the vertical profile is made to carry out the simulation and analysis of nitrate-N pollution of the groundwater in the typical profile.
所建立的地下水垂向剖面的二维水量水质模型，对典型剖面中地下水的硝态氮污染进行了模拟和分析。
Based on the crystal plasticity theory and mathematical theory of statistics, the relation of flow stress fluctuation quantity to grain dimension as well as billet dimensions was built.
基于晶体塑性理论及数理统计理论，建立了流动应力波动幅度与晶粒尺寸和坯料几何尺寸间的关系。
On the basis of the hydrological and water quality characteristics of Tongbotang river, a one-dimension-dynamic mathematical model of water quantity and quality was deduced.
本文在研究通波塘水文特征和水质特征的基础上，推导出通用性较好的一维动态水量水质数学模型。
Surface roughness degree which represents characteristic quantity of grade of land surface roughness is nonlinear, and can be described by fractal dimension.
反映地表粗糙状况特征量的地表粗糙度是非线性的，可以用分形去刻划。
The bypass mechanism of valve proper for the heavy duty gas turbine has a large dimension and large welding quantity with poor structure rigidity.
重型燃机旁路机构阀体主体尺寸大、结构刚性差、焊接量大。
Quantity of enclosed strength is due to cast temperature, shaping pressure , hole dimension, physical property of die material, etc.
包紧力的大小与铝液浇注温度、成形压力、孔径尺寸、 模型材料的物理性质等有关。
It can save a large quantity of industrial water to use the air cooled exchanger. But the traditional air cooled exchanger is low efficiency, larger dimension &high noise.
使用空冷器可以节约大量的工业用水，但传统空冷器热效率低、体积大、噪音大。
It can save a large quantity of industrial water to use the air cooled exchanger. But the traditional air cooled exchanger is low efficiency, larger dimension &high noise.
使用空冷器可以节约大量的工业用水，但传统空冷器热效率低、体积大、噪音大。
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