硝酸

The method has been used for the determination of trace nitrite in water and soil samples with satisfactory results.

用於水体和土壤中痕量亚硝酸根的测定，结果满意。

The method has been used for the determination of trace nitrite in water.

方法已用于水中微量亚硝酸根的测定。

The method was applied to determination of nitrite ion in water samples.

方法已用于水中微量亚硝酸根的测定。

The method has been applied to the determination of nitrite in natural water and food samples with satisfactory results.

用于水样、食品中亚硝酸根的测定，结果满意。

But, this kind of condition would only occurred when a great deal of nitrobacteria are added into the water.

1去氨硝化菌能将鱼类所排放的氨转成毒性较小的亚硝酸盐，而去亚硝酸硝化菌则负责将亚硝酸盐再转成毒性更小的硝酸盐，硝酸盐必须由换水的方式移除，像硝化细菌这类的细菌再作用时需要消耗水中的氧气所以也称好氧菌。

Nitrobacteria are sensitive to the environment. Even if FA is as low as 0.06mg NH〓-N/L, it can inhibit the nitrobacteria.

硝酸菌属对外界很敏感，即使游离氨浓度低至0.06mgNH〓-N／L，也会产生抑制作用。

According to those limitations, this study would like to use the molecular biology method to enumerate the nitrobacteria in the sample fast and precisely. We use fluorescent in situ hybridization method.

基於上述原因，本研究希望以分子生物学的方法快速且精确的计数样本中硝化菌的数量，所采用的方式为原位萤光杂合法（FISH； Fluorescent In Situ Hybridization），针对铵氧化菌与亚硝酸氧化菌的16S rDNA设计一段专一性的探针。

The best result of hybridization is produced in nitrocellulose membranes.

进口硝酸纤维素膜的灵敏度最好，本底信号低。

This complex moves forward continuously until it is eventually captured by the antibody immobilized on the surfaces of the nitrocellulose membrane.

这个复合物继续前移，直到被固定在硝酸纤维素表面的抗体捕获为止。

Soybean phytoesterase was used to immobilize on nitrocellulose membrane in this study.

采用硝酸纤维素膜和植物酯酶研究了农药残留快速检测固定化酶片。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。