north america nebula是什么意思

网络释义

用法例句

2 Dangerous Root Diseases and Quarantine Method of Imported Picea pungens

进境北美云杉2种危险性根部病害及检疫方法综述

Factors influencing cuttage of Picea pungens under full exposure and mist spray;

北美兰云杉全光喷雾下扦插影响因子研究

Influence of Treating Technology of Seed of Picea pungens on Rate of Emergence and Rate of Reservation;

北美兰云杉种子处理技术对苗木出苗率和保苗率影响的研究

Callus Induction and Culture of Picea pungens Glauca Globosa ;

北美蓝云杉愈伤组织的诱导和培养

In this paper, spatial and terporal variation process and law of unsaturated soil water on soil profile and horizontal direction under Sitka spruce forest in North Wales were approached using the tensionmeter technique.

本文论述了北威尔士北美云杉林〔Ｐｉｃｅａｓｉｔｃｈｅｎｓｉｓ（Ｂｏｎｇ）Ｃａｒｒ〕土壤非饱和水在土壤剖面上的垂直和水平方向的时空变化过程及规律。

2 Dangerous Root Diseases and Quarantine Method of Imported Picea pungens

进境北美云杉2种危险性根部病害及检疫方法综述

medium-sized spruce of northeastern North America having short blue-green leaves and slender cones.

北美东北部一种中型云杉，蓝绿色短叶，细长球果。

small spruce of boggy areas of northeastern North America having spreading branches with dense foliage; inferior wood.

北美东北沼泽地区的小型云杉，树枝外展，叶茂密；低等树种。

medium-sized spruce of eastern North America; chief lumber spruce of the area; source of pulpwood.

北美东部的一种中型云杉；当地主要的木材；纸浆用木材。

wide-ranging light-brown frog of moist North American woodlands esp. spruce.

大面积分布的北美洲潮湿森林地带特别是云杉林中的浅褐色蛙。

hemlock bark extract

北美铁杉树皮提取物

A PRELIMINARY STUDY ON PHOTOSYNTHESIS OF PICEA BRACHYTYLA VAR. COMPLANATA AND ABIES GEORGEI

滇西北亚高山云杉和冷杉光合作用的初步研究

tall spruce of northern Europe and Asia; resembles Norway spruce.

欧洲北部和亚洲的一种高大的云杉；与欧洲云杉相似。

Study on Structure and Species Diversity of Spruce Plantation in Northwestern Sichuan;

川西北云杉人工林结构与物种多样性研究

Research on Community and Species Diversity of Picea Crassifolia Kon Forests in the North Slope of Qilian Mountain;

祁连山（北坡）青海云杉群落物种多样性研究

Plant Important Value In Subalpine Spruce And Fir Forest In The North Slope Of Changbai Mountain

长白山北坡亚高山云冷杉林植物种类的重要值

Plant Composing In Subalpine Spruce And Fir Forest In The North Slope Of Changbai Mountain

长白山北坡亚高山云冷杉林的植物种类组成

Chinese Yew and Mairei Yew can be easily differentiated from Yunnan Yew through the texture of its leaf.

中国红豆杉和美丽红豆杉可以通过叶子的质地与云南红豆杉区分开。

Content of the Taxol and Brevifoliol in Species of Genus Taxus L.from East Asia and North America

东亚和北美产红豆杉属七种植物中紫杉醇及短叶醇的含量

Sap Flow Changes of Picea crassifolia and Larix principis-rupprechtii and Relation to Environmental Factors in Loess Alpine Area

青海云杉、华北落叶松边材液流变化规律及其与气象因子的关系

Analysis on the Distribution Pattern of Grass-Picea crassifolia Forest Dominant Population in the Northern Slope of Qilian Mountains

祁连山北坡草类—青海云杉林优势种群分布格局分析

The elevational patterns of β diversity of Picea crassifolia communities on northern slope of Qilianshan Mountain

祁连山北坡青海云杉群落β多样性垂直分布格局

Scale Effect of Landscape Research on the Forest-Alpine Meadow Landscapes in North Piedmont of Qilianshan Mountains

祁连山北麓青海云杉高山草甸景观的尺度效应分析