rkn是什么意思

Taking the advantage of thermal microbalance the kinetics of steam gasification of carbon deposited on the Ni-Catalyst containing rare earth oxide-REN has been studied and comPared with the kinetics on the Ni-Catalyst-RKN which contains no rare earth oxide.

用热重天平法研究了天津大学研制的含稀土的Ni催化剂REN上水蒸汽消碳动力学，并与丹麦研制的不含稀土的Ni催化剂RKN作了比较。

The population density of root-knot nematodes in soil is significantly correlated with the damage degree on the host. Therefore, accurately, reliably and rapidly identifying and counting RKN in soil is critically important for the effective control of disease.

土壤中根结线虫的群体密度与作物的受害程度关系密切，因此，准确、可靠和快速地鉴定和计数土壤中的根结线虫，对该病害的有效防治至关重要。

Root-knot nematodes ( RKN, Meloidogyne sp.) are harmful to the agricultural production in the worldwide.

根结线虫（Meloidogyne sp.）严重危害世界农业生产。