float-and-sink test

Influential factors on the accuracy of coal float-and-sink test;

影响煤炭浮沉试验准确性的因素

Description is made, in the paper, of a quick float-sink test device used for float-sink test carried in a coal preparation plant.

介绍了一种选煤厂用快速浮沉试验装置。

The technology of steel tube hoisting and installation with long span over 100 m and that of floating construction are seldom comparatively in Qiantang Tidal Bore Zone.

100 m以上大跨度钢结构整体吊装和浮沉施工在钱塘江强涌潮区中较为少见,介绍了多台吊机组合吊装大跨度钢结构的方法和在钱塘江强涌潮区水上浮运和沉放钢管的施工技术。

459g/cm3 in heavy media (C6H6-CCl4) at 25°C using centrifugal float-sink separation technique.

对五种不同煤阶的煤样在25℃的条件下以苯和四氯化碳的混合液为重液进行重介离心浮沉分选,每个煤样从1。

This paper gives a way to calculate the capacity of yarn's rising or falling and the covering properties on the basis of the floats, by which, the appearance of the compound fabrics can be imitated on the screen of computer.

以浮长线为基本研究单位，给出其浮沉能力的计算方法及其重叠属性的判定，据此对复杂组织织物的外观进行计算机模拟。