Primary spines of oral side club - shaped . tridentate pedicellariae occur in two forms , one with short , broad valves , the other with elongate , slender valves 本文包括了对各分类阶元的描述，种的记述有中名、学名、引证、形态、研究标本和地理分布。
2.
In this dinuclear complex , it is worthy of notice that the source of tridentate chelate atoms ( 1n2o ) of ida is different from that of the reported complex 合成过程中，我们还首次得到了与1 ， 10 -邻菲咯啉及亚氨基二乙酸( ida )络合的铜的不对称双核配合物晶体。
3.
In this sense , ida plays dual effects , tridentate chelating to cu ( 2 ) and bridge between two cu ( 1 ) andcu ( 2 ) . 3 metal complexes were selected as the appropriate for the study of cleavage plasmid pbr322dna by gel electrophoresis technique . the results showed ni and mn complexes could cleave effect - ively dna in the presence of h2o2 at physiological ph and temperature , whereas individual zn complex could cleave effectively dna 通过电泳实验研究了一系列金属配合物与pbr322dna的作用，发现在tris - hcl缓冲溶液中，生理条件下，镍、锰配合物在共反应物h _ 2o _ 2存在下能够很好的断裂dna ，而zn配合物单独作用就能够使dna由ccc型转化为oc和linear型。
