论述了通过双法兰差压变送器测定聚丙烯浆液密度，从而求出聚合反应釜中浆液浓度的方法，并进一步讨论了浆液浓度与平均停留时间、料位和聚合量等工艺参数之间的关系。
A method for calculating the slurry concentration inside the reactor was developed in this paper through determining the slurry density of polypropylene with double - flange pressure transmitter.
用X射线单晶衍射测定了该配合物的晶体结构。结果表明，配合物中锡原子呈五配位畸变三角双锥构型。
The crystal structure was determined by X ray single crystal diffraction, the structure is a distorted triangular bipyramid with five coordinated central tin atom.
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