The strength and metallurgical properties were affected severely as sinter liquid was less and complex mineral composition owing to high melting temperature point of concentrate.

该精矿初始熔点高，生成液相量少，烧结矿矿物组成复杂，严重影响强度与冶金性能。

youdao

The morphology of hsianghualie, the first new mineral discovered in China, is very complex.

香花石是我国发现的第一个新矿物，它的形态非常复杂。

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The retention rate declined with the increase of the addition when the addition of mineral complex fiber exceeding a certain limit.

当矿物复合纤维的添加量超过一定范围时，随着添加量的增加留着率会下降。

youdao

Although research has highlighted the importance of zinc for the immune system, because the mineral has many complex roles in the body it is not understood in any detail how it helps fight off infection.

BBC: Zinc 'keeps immune system in check'

Its interlocking cogs of power and influence -- geopolitical, regional, governmental, tribal, mineral, criminal, spiritual, clan and family -- are fiendishly complex.

CNN: Mali's conflict turns musicians into military

These are after all mines, often big mines, and the minerals extracted require complex and challenging refining to separate the chemically similar constellations of rare earth elements that are always collocated in various mineral concentrations and combinations.

FORBES: Tech's Mineral Infrastructure - Time to Emulate China's Rare Earth Policies