1) natural head
天然水头
3) natural water
天然水
1.
The influence of typical posion in natural water to Fenton;
天然水中典型阴离子对芬顿反应的影响
2.
Preconcentration with surfactant-coated alumina column and determination of trace amounts of copper, iron and lead in natural water by FAAS;
氧化铝柱富集火焰原子吸收光谱法测定天然水中微量铜、铁、铅
3.
Determination of Calcium and Magnesium in Natural Water by Flow Injection Analysis Inductively Coupled Plasma Atomic Emission Spectrometry;
流动注射-电感耦合等离子体发射光谱法测定天然水中的钙和镁
4) natural level
天然水平
1.
Two samples of a set of national standard water samples which have natural level ratio of D and H are set as standards and the other two as unknown samples,a linear calibration method with equal H2+ is studied on GAM400 quadrupole mass spectrometer.
以氘丰度为天然水平的国家一级标准水样中的两个样品作为标准,另外两个样品作为测试样品,在GAM400四极质谱计上探索了等氢分子离子H2+线性校正测量值的方法。
5) wild water plant
天然水草
1.
The ecological fibre is a new water treatment material that is processed by simulating the shape of wild water plant.
生态弹性填料是一种模拟天然水草形态加工而成的新型水处理材料,近年来在污水处理中得到了广泛应用。
6) natural water
天然水体
1.
Study on the fuzzy synthetic evaluation for natural water quality;
模糊综合评价在天然水体水质评价中的应用研究
2.
The relationship between the purification and distribution of Fe and Oxalate in natural water;
天然水体中Fe和草酸根分布与水体净化的关系
3.
This paper is inclined to present the results of our natural water degradation simulated experiments so as to gain a better under- standing over the behavior of the photooxidation degradation of aniline in a photochemical reactor designed by ourselves.
为了更好地了解苯胺类物质在环境中的化学行为,在自行设计的光化学反应器上进行模拟天然水体的苯胺光降解实验,用气相色谱法测定苯胺的残余质量浓度,考察了水体pH值、光强、反应时间、光敏化剂、水质等条件影响下苯胺的光降解效果和规律。
补充资料：石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(internotional tradeof011 and只as)见石油市场与天然气市场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条