测定了低温下聚氨酯硬泡沫塑料拉伸、剪切和压缩弹性模量与泡沫密度、方向以及温度的关系。
Measurements have been made to determine the relation of the tension, the compression and the shearing of PUR foam at low temperature with its density, direction and temperature.
研究了油墨温度与溶剂的消耗量、油墨的消耗量以及印品的反射密度、光泽度、网点等质量检测指标的关系。
The relationship between ink temperature and solvent consumption, the ink consumption and print quality test indicators, such as reflection density, gloss, and dot structure were studied.
利用最小二乘法，建立过热蒸汽的密度与温度、压力之间的函数关系，实现过热蒸汽的空间曲面补偿法，力求测量误差达到最小。
Use method of the least squares to build function relation between temperature and pressure, the space camber compensation method is realized and makes THD measuring error least.
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