manganese boron

The results show that the relatively low content of Carbon 、 Manganese 、 Vanadium 、 Boron in deposited metal is a direct cause which promotes formation of ferrite net in weld metal.

结果表明，熔敷金属C、Mn、V、B含量偏低是促使焊缝金属产生网状铁素体的直接原因。

By adding silicon, manganese, boron and rare earth elements to the alloy, the properties of the alloy was optimized.

在国产ZZnAl4Y合金的基础上添加硅，锰，硼，钛和稀土元素，优化合金性能。

The experiment has shown that heat treatment can change the pattern and distribution of manganese& boron alloyed white cast iron carbide and the effect has close relationship with the treatment technique heat parameter and the pattern of the cast carbide.

试验结果表明：热处理可改变锰硼白口铸铁碳化物的形态与分布，其效果与热处理工艺参数及碳化物形态等密切有关。

Effect of water toughening temperature on microstructure and properties of super-high manganese steel with trace boron

水韧处理温度对含硼超高锰钢组织和性能的影响

When about 2% chromium content adds to the high manganese steel with trace boron, the integrated performance is better.

含硼高锰钢中加入2%左右的铬，综合性能较好。

The effect of zinc, manganese, molybdenum, boron applied as isolation or combination on yield, protein content and oil content in different soybean genetic types was observed.

探讨了锌、锰、钼、硼4种微量元素肥料单独及配合施用对不同基因型大豆籽粒蛋白质含量、脂肪含量及产量的影响。

PH, the content of soil organic and nutritive elements and the soil texture are the impacting on the production of Chinese chestnut; iron, manganese, boron and other trace nutritive element are the important impacting on the character of Chinese chestnut.

土壤pH值、土壤有机质和营养元素含量及质地等理化性质与条件是影响板栗产量的因素，而铁、锰、硼等微量元素的含量则是影响板栗品质的重要因素。