The group sets department mainly by rose flower pattern and spherical flower pattern composition, altogether seven product specifications.
该组套系主要由玫瑰花朵图案和球形花朵图案构成，共有七种产品规格。
The fault and influence factors existing on the flat-bottomed spherical density bottles used in the lab have been analyzed by using the analysis method of product quality reliability.
应用产品质量可靠性分析方法对目前实验室常用的平底球形密度瓶存在故障及影响因素进行了分析。
By using the method of spherical harmonic, the boundedness of a kind of singular integral operator in product domains is given in this paper.
用球调和的方法研究了一类乘积空间上奇异积分算子的有界性，所获得的结果给出了以往奇异积分算子有界性的应用。
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