查询词典 NA

The adsorption and dissociation of Cl2 on MgO (001) surface supported Na monolayers is investigated.

同时，发现Cl2的吸附与文献报道的CO分子在Na/MgO (001)表面上的吸附行为不同，并从能带和态密度分析，对吸附机理进行了合理诠释。

ML Y L.Effects of Na 2 SO 3 on the activities of antioxidant enˉ zymes in geranium seedlings［J］.

盐胁迫对4树种叶片中K +和Na +的影响及其耐盐能力的评价［J］。

This geographic name probably meant all of western Syria and Canaan, with Raphia,"the city of the Ka-n-'-na", on the southwest boundary toward the desert.

这个地理学上的名字很可能是指叙利亚西部和迦南的所有地方，还有酒椰，&Ka-n-'-na的城市&，位于西南方边界，直向沙漠。

Cations of higher valencies are adsorbed more strongly to surface active sorption sites, with the following order: M+(Na+、K+、NH＋4)2+(Ca2+、Mg2+、Zn2+)3+(Al3+).

其影响趋势主要为价态的影响，即价态越高，竞争吸附能力越强：M+（Na+、K+、NH＋4）2+（Ca2+、Mg2+、Zn2+）3+（Al3+）。

Then we introduce theory of ion-exchange process and how to design multimode Y branch optical splitters. Lastly we do some experiment of how to fabricate the device with Li~+-Na~+ ion-exchange technology.

本文首先比较了多模功分器的种类和制作方法，介绍了离子交换的原理，然后对多模Y分支结构的多模光功分器进行设计，并对器件制作所用的Li~+-Na~+离子交换工艺进行实验研究。

Our primary hypothesis was that in low-renin patients with normal plasma K+ and aldosterone, a thiazide diuretic, bendroflumethiazide, would be as effectie as spironolactone in oercoming the Na+ retention and lowering blood pressure.

我们首要的假说是：对血清K+浓度及醛固水平正常的低肾素性高血压患者应用一种噻嗪类利尿剂……苄氟噻嗪治疗Na+潴留和降低血压同使用安体舒通同样有效。

The results of XEDS suggested that U and Ba were enriched on the surface; at the same time, Ca and Ti had a little depleted on the surface of pyrochlore-rich synroc; the results of XRD and SEM indicated that Fe〓O〓 can increase the corrosion of glass and pyrochlore-rich synroc; The results of glass mass loss rate showed that bentonite had the most corrosive to the glass specimens among barrier media; the results of XEDS indicated that Ca、Fe and A1 element were enriched on the glass surfaces, Si and Mg had slightly depleted, and Na was completely depleted.

玻璃固化体样品分析结果显示，膨润土体系有增加玻璃腐蚀的倾向。X-射线能谱分析表明，在玻璃样品表面Ca、Fe和Al元素呈富集，Si和Mg元素略有浸出，Na元素基本完全浸出，这同其他浸出实验结果一致。

Thus, Na-clays are ine_ective sorbents for small organic molecules.

因此， Na-泥土是小的有机分子的 ine_ective 吸着剂。

Sherds were collected from Hongzhou Kiln covering 8 periods from Eastern Han to Late Tang Dynasty/the Five Dynastied and their bodies were analysed by NAA. The results show that the elemental contents in different samples are quite distinct, even for those in the same period. It means no single element can be used as "fingerprint" to distinguish the period. The curves of the contents of Na, Rb, Ba and Fe varying with lime are very similar, like "U" shape.

对江西洪州窑从东汉晚期至晚唐五代8期400个瓷胎样品进行了中子活化分析，分析结果显示碱金属元素Na和Rb、碱土金属元素Ba及Fe等作为胎的助熔剂元素随年代的变化趋势相似，都呈现出两头高中间低的U字形变化规律，其中Fe作为呈色元素，其含量的高低与瓷胎颜色的深浅是一致的。

Sherds were collected from Hongzhou Kiln covering 8 periods from Eastern Han to Late Tang Dynasty/the Five Dynastied and their bodies were analysed by NAA. The results show that the elemental contents in different samples are quite distinct, even for those in the same period. It means no single element can be used as "fingerprint" to distinguish the period. The curves of the contents of Na, Rb, Ba and Fe varying with time are very similar, like "U" shape.

对江西洪州窑从东汉晚期至晚唐五代8期400个瓷胎样品进行了中子活化分析，分析结果显示碱金属元素Na和Rb、碱土金属元素Ba及Fe等作为胎的助熔剂元素随年代的变化趋势相似，都呈现出两头高中间低的U字形变化规律，其中Fe作为呈色元素，其含量的高低与瓷胎颜色的深浅是一致的。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。