naas

Amongst NAAs themselves a network structure is formed by idiotype-antiidiotype interactions .

NAA内部通过独特型-抗独特型相互作用形成一个网络结构。

The discovery of NAAs is theoretically significant in providing a challenge to the traditionally accepted " clonal selection theory " .

NAA的发现，向经典的克隆选择学说提出了挑战，具有重要的理论意义。

NAAS drew up an operational plan for an academy of agricultural sciences , three national crop research institutes and a university dedicated to agriculture .

NAAS起草了一份操作计划来建立一个农业科学院、三个国家级农作物研究所和一所农业大学。该计划目前正在与政府沟通。

A spectrum of normal functions have been attributed to NAAs , including the maintenace of homeostasis of the organism , immune regulation , resistance to infection , catalytic activity , and transport of biologically active molecules .

NAA具有广泛的生理功能和作用，包括：机体内环境稳定的维持、免疫调节、抗感染、催化活性、小分子活性物质的运送等。

Soap-free emulsion copolymerization of methyl methacrylate ( MMA ) and butyl acrylate ( BA ) in the presence of water soluble ionic comonomer , sodium allyl sulfonate ( NaAS ) and of the initiator , potassium persulfate ( KPS ), were carried out .

经红外光谱检测证实，离子型单体烯丙基磺酸钠（NaAS）参与了甲基丙烯酸甲酯（MMA）与丙烯酸正丁酯（BA）的无皂乳液共聚合。