On the basis of N and P fertilizers, application of the multiple element compound has positive effect on yield in the acid soils.

在氮、磷肥施用的基础上，配施富钾硅多元复合物与施纯硅肥、钾肥、钙镁肥一样，在酸性土壤上具有显著的增产效应；

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The principle of manufacture, production process and application result of multi element compound fertilizer based on pulverized coal ash are described.

本文介绍了粉煤灰多元素复混肥的制造原理、生产工艺及使用效果。

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Frequency distributions of element combinations may find compound elements that do uniquely determine the data.

元素组合的频率分布可以发现能够惟一确定数据的复合元素。

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Yes that's right, the base metal element lead, Pb, or more exactly the lead-based chemical compound Pb(CH2CH3)4 added to petrol to make car engines run more smoothly.

BBC: Does lead poisoning make you violent?

One key element in searching for life on Mars is the presence of methane in the Martian atmosphere As a simple carbon compound, methane is often a precursor to the formation of the complex organic chemicals that make life possible.

FORBES: Curiosity Sniffs The Martian Atmosphere But Finds No Sign Of Life