查询词典 lead nitrate

When the propellant was lead styphnate and nickel hydrazine nitrate, their properties ...

研究了装药分别为硝酸肼镍和斯蒂酚酸铅的微推进器的推进性能。

Is also one of the factors of environmental pollution, drinking water containing nitrate will lead to disease, but have not yet heard of the酸性体质with lymphoma.

环境污染也是其中一个因素，饮用含有硝酸盐的水也会导致发病，但还没听说淋巴癌跟酸性体质有关。

When thepropellant was lead styphnate and nickel hydrazine nitrate, their propertiesof ignition and thrust were investigate.

研究了装药分别为硝酸肼镍和斯蒂酚酸铅的微推进器的推进性能。

When the propellant was lead styphnate and nickel hydrazine nitrate , their properties of ignition and thrust were investigated under different chamber diameter and different proportion of themixed propellant.

研究了史蒂酚酸铅和硝酸肼镍在不同药室直径和药剂配比下的点火和推进性能，并且计算了推力器参数对推力性能的影响。

The proportion of organic fertilizer in total nutrient inputs had being decreased with time, 2 the recycling ratio of nutrient of organic fertilizer was low, the regional application of organic fertilizer was imbalanced, and 3 over-application of organic fertilizer lead to nitrate pollution of groundwater and heavy metal accumulation in soil.

我国有机肥料利用中存在的主要问题是：①有机肥施用面积逐年减少，肥料结构中有机肥的比重逐年降低，但近年来趋于平稳；②有机肥养分再循环率不高，区域利用状况不平衡；③有机肥过量施用带来的一些环境问题如地下水资源污染、土壤重金属累积等。

Large accumulation of nitrate N in the soil profile might lead to potential environmental pollution.

土壤剖面累积大量的硝态氮，可能会造成潜在的环境问题。

The determination of lead content in naphtha by graphite furnace atomic absorption spec-troscopy was studied with tetrahydrofuran as solvent, nickelous nitrate as matrix modifier and suitable amount of iodine solution added in samples.

将试样用四氢呋喃稀释，加入适量碘溶液，以硝酸镍为基体改进剂，研究了用石墨炉原子吸收光谱法直接进样测定石脑油中的铅含量。

Dao first art paint line刮干净Department, the lead Department in his wax-coated, and then along the alignment pin is zoned to the wax, then drop in on top of silver nitrate solution.

先用美工刀把断线处的漆刮干净，在露出的导线处涂上蜡，再用针顺着走线把蜡划去，接下来就是在上面滴上硝酸银溶液。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。