Their Aw property added in water is investigated and the proportion for the compound phosphate ester is optimized by means of four - ball tester.

利用四球试验机考察了添加到水溶液中的抗磨性能，并优化了复合磷酸酯的配比。

youdao

This invention relates to a raw material of metallurgy of steel-melting, especially a compound iron ball for steel-melting and its facture.

本发明涉及一种冶金工业炼钢生产使用的原料领域，特别是一种炼钢用复合铁球及其生产工艺。

youdao

The main product is: the warp knitting cloth, the weft knitting cloth, the sandwich netting, the high ball to netting, SBR the compound materials, to spread model products and so on material.

主要产品为：经编布、纬编布、三明治网布、高弹网布、SBR复合材料、涂塑材料等产品。

youdao

The Falcons launched a breathtaking 70m attack only to turn the ball over again close to the Gloucester line, and Wilkinson missed a simple penalty to compound their woes.

BBC: Newcastle 13-20 Gloucester