A nonwoven web of fibers that have a number average diameter of less than 1 micron.
本发明提供了数均直径小于1微米的纤维的非织造纤网。
The number average molecular weight was determined as 78 650, the weight average molecular weight as 125 446, the molecular weight distribution as 1. 59 by gel permeation chromatography.
采用凝胶渗透色谱仪测试其数均相对分子质量为78 650，重均相对分子质量为125 446，相对分子质量分布为1．59。
In addition, the obtained results showed that the number average molecular weight is independent of the conversion and only relative to the reaction temperature at lower conversion stage.
此外，结果表明，在低转化阶段，数均分子量不随转化率改变，仅与聚合反应温度有关。
The standing tree volume, stand stocking of riparian forest stand, number, average volume and total stock of in-stream LWD at streams in Liangshui were greater than that of Maoershan.
凉水溪流河岸带森林立木材积、林分蓄积及溪流倒木数量、平均倒木体积和总倒木蓄积量均高于帽儿山溪流。
Several targets, such as patch number, average patch area, form index of patch, fragmentation index, sub-dimension, heterogeneity index of landscape and homogeneity index of landscape were studied.
选取了斑块数、平均斑块面积、斑块形状指数、破碎化指数、分维数、景观异质性指数和景观均匀度指数等指标进行研究分析。
The carbon number, average aromatic carbon number, average saturated carbon number and the average number of methyl were figured out.
这些结构参数直观地表征了石油磺酸钠中烷基芳烃的平均结构模型。
The effects of the operating vacuum, the initial cyclohexane concentration and the liquid height on the number-average bubble sizes are discussed emphatically.
讨论了液体深度、操作真空度和环己烷初始浓度对数均气泡直径的影响。
The data of GPC indicate that the number-average molecular is 4934 and the polydispersity is 1.978 with a narrow molecular distribution.
GPC测得共聚物的数均分子量为4934，多分散指数是1.978，具有较窄的分子量分布。
The glyceryl was used as standard to calculate Number—Average Molecular Weight of polyether. The result showed that it was accurate, convenient and high speed method.
用甘油基作标准求出了聚醚的数均分子量，结果表明此法准确、方便、快速。
The glyceryl was used as standard to calculate Number—Average Molecular Weight of polyether. The result showed that it was accurate, convenient and high speed method.
用甘油基作标准求出了聚醚的数均分子量，结果表明此法准确、方便、快速。
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