ball saddle 中文意思是什麼
ball saddle
解釋
滾珠支撐-
The space geometry is open and negatively curved as a saddle. if the density equals to the critical density exactly, the space is flat as a sheet of paper. if the density is greater than the critical density, the space geometry is closed and positively curved as a ball
為負馬鞍形的開放宇宙假若密度和臨界密度相等，空間曲率為零，宇宙如一張白紙般平坦假若密度高於臨界密度，它則是一個空間曲率為正球形的封閉宇宙。 -
The chemical packing produced by this factouy includes pure aluminium oxide ball, mullite ball, ceramics ball, corumdum chop, tasching ring, rectangle ring and saddle ring, which has sucn advantages as complete specification, a lot of variety, stable quality, credible fumction and big production volume. it can be widely used in large and medium scale fertilizer, oil and chemical industry, etc
化工填料產品主要有純氧化鋁球、莫來石球、普通瓷球、活性氧化鋁球、剛玉碎塊、拉西環、矩形環、馬鞍環等幾十個品種，具有規格齊全，品種較多、質量穩定、性能可靠、生產量大等優點，廣泛應用於大中型化肥、石油、化工及其它行業。
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