Its composition containing: organic humus and nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and iron, copper, zinc, boron, molybdenum and other trace elements.
它的成份含﹕有机腐殖质和氮、磷、钾、钙、镁、硫及铁、铜、锌、硼、钼等多种微量元素。
Micronutrients. The micronutrients essential to plants include molybdenum, boron, zinc, manganese, iron, copper, and chlorine.
微量营养元素植物所必需的微量元素包括钼、硼、锌、锰、铁，铜和氯。
The effect of copper on low boron low chromium nickel based brazing alloy was studied by experiments.
本文研究了铜对低硼、低铬镍基钎料工艺性能的影响。
The results showed that boron has a notable influence on the mechanical properties of high chromium cast iron at as-cast and molybdenum and copper has little influence on the mechanical properties.
研究结果表明：硼对铸态高铬铸铁力学性能有显著影响，而钼和铜对其性能影响不大。
The results show that the melting point of brazing alloy is constant when the content of boron and silicon is reduced and the right amount of copper is added in.
试验结果表明，在降低镍基钎料中硼、硅元素的同时加入适量的铜可以使钎料的熔点基本不变。
Increases the quantities of micronutrients in the soil like: Manganese, Magnesium, Iron, Zinc, Copper, Molybdenum and Boron.
提高土壤所需微量元素的数量，如：锰，镁，铁，铜，钼以及硼。
Increases the quantities of micronutrients in the soil like: Manganese, Magnesium, Iron, Zinc, Copper, Molybdenum and Boron.
提高土壤所需微量元素的数量，如：锰，镁，铁，铜，钼以及硼。
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