湿度学

After mainenervations being drawn out and being dried for 4 hours at 60℃,1156 samples of tobacco leaves from different tobacco producing-area were made into powder (≤0.13 mm). Reducing sugar, total sugar, nicotine, nitrogen, potassium and chlorine of more than 1000 samples from different tobacco producing-area were determined with classical chemical or instrumental methods. By scanning these samples with Fourier transform Near Infrared spectrometer (MARIXT-I produced by Bucker) we obtained their spectrograms, pretreated the spectrograms with a chemometrics software (OPUS 5.5) to debase the noises influence on spectrum information, and built a chemometrics model by means of Partial Least2Squares. The chemometric model was optimized some times and validated with some other samples.

选取全国不同烟草生产地区的1156余烟叶样品，采用相同的预处理条件(去处主脉，60℃烘干4小时)，处理成40目待测粉末样品，采用行业经典的化学分析方法或准确可靠仪器方法测定其常规成分含量，在条件一致(20℃～24℃，环境湿度≤40 RH%)的实验室环境中，使用市场上主流的傅立叶变换红外光谱仪(德国BRUKER公司生产的MARIXT-I)上进行图谱扫描，采用OPUS5.5化学计量学软件，对光谱进行适当的预处理，减弱以至于消除各种噪声对光谱信息的影响，用偏最小二乘回归法建立常规成分预测模型，并进行了反复优化和未知样品模型外验证。

Paper publishes materials that are used by anlistatig is a tetravalent salt toxicchemical on the surface of the paper, in low humidities quadrivalent salt water from the air, to reduce the material surface resistance.

纸类承印质料所用的抗静电剂是一栽四价盐的冻学品涂在纸暗不天上后，在矮湿度下四价盐从氛围洋汲取水分，使堵住质料暗不天的电阻减小。

Surroundings: the usage of space and the perception, like day or night, temperature, and humidity, furniture and décor, light and noise etc.

环境学：指空间的使用和感觉，如白天或夜晚、温度与湿度、家俱和装潢、光线与噪音等。

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。