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1)  Na/Mg ratio
Na/Mg比值
1.
The hatching ability of Artemia cysts largely depends on the co-effect of chemical and biological factors of hatching medium,the content of Na +,Mg 2+ and Na/Mg ratio seems to be one of the key factors for Artemia hatching when we hatched the cysts from Karabogazgol(Turkmenistan).
卤虫的生长发育依赖于卤水中各种生态因子的综合作用 ,但是卤水中Na+、Mg2 +含量及其Na/Mg比值是影响卤虫发育生长的关键性因子。
2)  Na / Ca ratio
Na/Ca比值
1.
The seedlings were grown in the greenhouse for 15 days and then stressed with cultural solutions containing various Na / Ca ratios.
但Ca~(2+)作用大小受介质中Na~+与Ca~(2+)两者之比值的制约,最适Na/Ca比值为20和50。
3)  Mg/Ca ratio
Mg/Ca比值
1.
Climatic significance of the Mg/Ca ratio from speleothems in Chongqing;
重庆地区石笋记录中Mg/Ca比值及古气候意义
2.
Measurement of Mg/Ca ratio of foraminifera shell is the most popular means in calculating seawater paleotemperature now.
有孔虫壳体的Mg/Ca比值测定是目前估算海水古温度最受重视的方法,适用于低纬和高纬、表层和深层海水古温度的测定。
4)  ratio of potassium and magnesium
K/Mg比值
5)  Na-Mg Modification
Na-Mg变质
1.
Research of Na-Mg Modification Rules on Al-Si Alloys;
铝合金Na-Mg变质规律研究
6)  Na-Mg co-dopants
Na-Mg掺杂
补充资料:PCP-Na+MCPA-Na+prometryne
分子式:
CAS号:

性质:外观为淡褐色粉粒,pH值为8.0~9.2。该剂具有较好的湿润性及悬浮性,有刺激气味,易吸潮。大鼠急性经口LD50316mg/kg,家兔急性经皮LD50 825mg/kg。61.75%五二扑粉粒剂是由54%五氯酚钠,5%2甲4氯钠盐及2.7%扑草净组成的混合制剂。对稻田眼子菜防除效果突出,并能防除某些一年生及多年生杂草,温度低于20℃,药效发挥缓慢。持效期3~4周。

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