对不同配比的焦球作了各种强度指标的测定，结果表明当腐植酸钠的配入量达7%时，焦球的各项强度指标均较高。
The various strength indexes of the different ratio formed coke are determined, the results show that the formed coke exhibits high strength when the addition of humic acid sodium is up to 7%.
本文利用成焦板、四球机试验考察了各清净剂在中间基和加氢基础油中的感受性。
This article investigated the adaptability of all kinds of detergent in different base oil through plate and four ball testing.
本文给出了伪球率线汇极小焦面稳定性的六个定理。
In this paper, we discuss six theorems of the stability on minimal focal surface.
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