查询词典 niche

But with top speeds of around 160 kilometers an hour and a maximum capacity of several dozen passengers, dirigibles are expected by most aviation experts to remain niche vessels for ferrying tourists, advertising and occasional scientific payloads.

但大部分航空专家预期，最快时速约160公里、最高载客量约几十人的飞船，将成为拥有特殊利基的运输工具，可用於运送游客、发布广告及偶尔搭载科学仪器。

With spatial sequence taking the place of temporal sequence and succession time as ecological dimension, the niche volumes and overlaps of various species were quantitatively investigated in the manmade florae of Shapotou Area to study the resource-exploiting capacities, interspecific similarities and competition mechanisms of various community components of manmade florae in sand areas in community succession.

在沙坡头沙区人工植被群落区，采用空间序列代替时间序列，并以演替时间为生态位维度，通过定量分析物种的生态位体积和生态位重迭，研究沙区人工植物群落演替过程中群落各组分种对资源的利用能力、种间生态相似性及竞争机制。

With spatial sequence taking the place of temporal sequence and succession time as ecological dimension, the niche volumes and overlaps of various species were quantitatively investigated in the manmade florae of Shapotou Area to study the resource-exploiting capacities, interspecific similarities and competition mechanisms of various community components of manmade florae in sand areas in community succession.

在沙坡头沙区人工植被群落区，采用空间序列代替时间序列，并以演替时间为生态位维度，通过定量分析物种的生态位体积和生态位重叠，研究沙区人工植物群落演替过程中群落各组分种对资源的利用能力、种间生态相似性及竞争机制。

But the track record of cross-border auto-sector deals, especially in niche markets like that for Hummers, isn't great.

但汽车业跨国交易的历史记录并不那么好，尤其是悍马所在的小众市场。

CITIC-prudential life insurance yesterday lanched a childrens education policy -a niche market in the insurance sector.

中信保诚人寿保险公司，昨日发售了儿童教育保单---在保险业，它是一类特殊市场。

This paper concerns the analyses of niche breadths of and overlaps bet-ween several plant species in 3 Kobresia communities in the Haibei Research Station using the formula described by Levins and Pianka.

本文利用Levins和Pianka公式，在多维生态因子梯度上测定了海北地区高寒草甸三种嵩草群落中若干植物种的生态位宽度和生态位重叠。

Quadrats were divided into eight types of communities by TWINSPAN, which can be treated as one-dimension resource states. The niche breadths and overlaps of main dominant species were measured using a series of indices proposed by Levins, Shannon-wiener and Petraitis.

运用TWINSPAN把样方分为8个群落类型，用Levins、Shannon-wiener生态位宽度公式和Petraitis生态位特定重叠指数公式测定群落中主要种群生态位宽度和生态位重叠，并分析各种群生态位的生态学意义。

In order to exploit efficiently the ornamental resource-Cerasus subhirtella var. ascendens, based on the importance value as one-dimension resource state, the niche characteristics of ten dominant tree populations in C. subhirtella var. ascendens community in Wuyi Mountain of Fujian Province were calculated and analyzed with Levins, Hurlbert, Pianka and Schoener formulas.

为了更好地开发利用野生早樱这一木本观花植物，以物种重要值为生态位计算资源状态指标，应用Levins公式、Hurtlbert公式、Pianka公式和Schoener公式对福建武夷山野生早樱群落乔木层10个优势种群进行生态位宽度、生态位重叠和生态位相似性比例的计算与分析。

The research is based on niche market, Long-tail and competitive advantage of six Taiwan industrial computer manufacturers.

本研究以利基产品、长尾理论与竞争优势作为探讨国内六家工业电脑厂商竞争优势的观点，透过个案厂商之资料搜集，从过去个案发展的脉络中归纳与探讨其产品过去、现在、以及未来的竞争优势。

In inche overlaps, the niche overlop of B. platyphylla and P. davidiana, B. platyphylla and A. mono, B. platyphylla and J. mandshurica were big. Otherwise, P. orientalis, Q. aliena, Ailanthus altissima, U. macrocarpa with other species were small.

3在生态位重叠指数中，白桦和山杨、色木槭和白桦、白蜡和胡桃楸、色木槭和山杨生态位重叠较大，而侧柏、槲栎、臭椿和大果榆与其他的多个主要树种的生态重叠指数较小。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。