The results of joint action experiments showed that, except of the binary mixture of tetracycline and 7-aca had antagonistic effect, the other binary mixtures showed simple additive effect.
联合毒性实验结果显示除四环素和7 - ACA的二元混合物为拮抗作用外，其余二元混合物均为简单相加作用。
Reason of invalidation failure was analyzed on expansion joint of second stage exchanger of mixture hydrogen in semi-regenerative reformer.
分析了半再生重整装置二段混氢换热器膨胀节失效破裂的原因。
The appearence characteristics of the heterogenous mixture zone near the bottom of weld metal in the fusion welded joint are studied through metallographic observations of many fusion welded joints.
通过时大量熔化焊接头的金相观察，研究了熔化焊接头焊缝底部附近“不均匀混合区”的形貌特征。
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