查询词典 species

The conserved regions of rRNA and tRNA genes exhibited higher sequence similarity among plant species. Five primer pairs were designed from the conserved regions distributing in psbA~trnK, psbB~psbH, rpl23~trnI, trnR-ACG~trnN-GUU and trnY-GUA~trnD-GUC, respectively to amplify sequences about 500~600 bp, 800~900 bp, 650~700 bp (350 bp, not legume species), 700~800 bp (400 bp in dicotyledon), and 500~600 bp.

经由上述比对分析后设计出5引子对，位於叶绿体基因体的位置分别为psbA~trnK、psbB~psbH、rpl23~trnI、trnR-ACG~trnN-GUU及trnY-GUA~ trnD-GUC，预期实际应用在其他物种上所能增幅之变异序列长度分别约为500~600 bp、800~900 bp、650~700 bp (豆科以外物种为350 bp)、700~800 bp (双子叶植物为400 bp)及500~600 bp。

Heterostyly A dimorphism in which the styles of the same species are of different lengths, thus dividing the species into groups.

花柱异长：是指在同一种植物中存在花柱的二态性，它是通过花柱的不同长度划分的。

Based on the data observed in four seasons during May 2004 to February 2005 and collected during the red tide occurrence period from 2001 to 2005 in the Nanji Islands sea area, the seasonal variations in species composition, dominant species and cell abundance of phytoplankton in the sea area, their relations to the environmental factors and the occurrence conditions of dinoflagellate red tide in spring are analyzed.

根据2004年5月－2005年2月4个季节的调查资料以及2001-2005年赤潮发生时收集的资料，分析了南麂列岛海域浮游植物的种类组成、优势种类、细胞丰度的季节变化及其与环境因子的关系、春季甲藻赤潮发生状况。

In some species there are diploid and polyploid varieties that look almost identical, though sometimes they may be referred to as separate species.

在一些同时具备二倍体和多倍体的物种中，虽然它们被认为是不同的独立物种，但它们的外形几乎是完全相同的。

About 150 species: disjunct between Africa, Asia, and Europe; 44 species (28 endemic, one introduced) in China.

大约150种：在非洲，亚洲和欧洲之间间断； 44种(28特有，引进栽培)在中国。

About 12 species: disjunct distribution in W Africa, tropical Asia, Madagascar, South America, and West Indies; one species in China.

大约12种：间断分布于非洲西部，亚洲热带，马达加斯加，南美洲和西印度群岛；中国有1种。

But a suspiciously large number of the new species have turned up in the limited group of big, showy animals known somewhat disparagingly as "charismatic megafauna"—in other words the species that the public, as opposed to the experts, care about.

有意思的是，那些由专家定义且让人摸不着头脑的海量新物种，到了公众眼里，就全都被描述为少数几个兼容并包、言简意赅的大整体，有人戏称之为"魅力十足的大猛犸"。

Few PVA studies have been conducted on endangered species in China, compared with the disproportionally high number of endangered species in China.

我国的濒危物种很多，然而开展PVA研究的濒危物种却很少。

The thesis studies the pest acarids groups on apple trees in fruit areas such as YangLing, LiQuan, QianXian, FengXiang, MeiXian,and LuoChuan, Shaanxi Province, demonstrating that Tetranychus viennenis Zacher; Tetranychus urticae Koch and Panonychus ulmi Koch.are the key species, and comparing the morphology and biology of the three species of acarids.made the contrast with the modality and disserve habit of three kind harm acarids.

本文系统研究了陕西果区苹果害螨的种类，调查了杨凌、礼泉、乾县、凤翔、眉县、洛川等地区苹果树上的害螨种群，明确了陕西果区苹果害螨种类主要有三种：(1)山楂叶螨Tetranychus viennenis Zacher；(2)二斑叶螨Tetranychus urticae Koch；(3)苹果全爪螨Panonychus ulmi。

Study on the relationship between soil fertility properties and species diversity in grass layer showed that the main factor affecting species diversity was soil PH, then was the soil total phosphorus.

4对防护林草本层物种多样性指数与土壤肥力因子的关系研究表明：影响草本层物种多样性的主要因子是土壤PH 值，其次是土壤全磷含量。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。