The spherical tank (gas holder, container) will be shipped in the condition of edge prepared and bent plates.
球罐（气柜、容器）将以板加工和弯板的条件发货。
Open cell aluminum foams were prepared by traditional powder metallurgy process, with spherical carbamide particles as the space-holder.
以球形尿素颗粒为造孔剂，采用传统的粉末冶金工艺制备开孔泡沫铝并研究了其性能。
Design condition of winder of spherical gas-holder and relationship of design parameters are discussed, and steps of determination of design parameters are put forward.
分析了球罐盘梯的设计条件和各设计参数之间的关系，给出了确定设计参数的步骤。
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