principal species

The structure of grasshopper community in different environment in Luo River region was compared using species-abundance model, diversity index, similarity analysis, principal component analysis and stepwise regression.

应用种-多度分布模型、多样性指数、相似性分析、主成分（PCA）分析及多元逐步回归等方法比较了洛河流域不同生境的蝗虫群落结构。

These species consist of the so-called principal market tunas and some billfishes.

这些品种包括 所谓 的主要市场金枪鱼和一些旗鱼.

α-Gustducin is a taste-specific G-protein closely related to the transducins. It is present in the taste cells of several vertebrate species, ranging from fish to humans. α-gustducin is one of the principal mediators for vertebrates' taste perception.

α-参兜鞍是一种transducins样味觉特异性G蛋白，它在从鱼到人类的多种脊椎动物物种的味细胞内均有表达，是脊椎动物味觉感受中重要的调控因子之一。

The Grey Forecast Model on Volume Increment of Principal Arbor Species in Loess Plateau

黄土高原主要乔木树种材积生长量的灰色预测模型

Apart from the Rhizophora spp., many of the principal species coppice readily.

除了Rhizophora以外，许多主要品种易于萌生。