查询词典 loblolly pine

Classifying by genetic distance, we selected 5 greatly fastgrowing families and 10 less fastgrowing families, compared with Slash pine, whose genetic gains of volume are 44% and 14% respectively, and with Mason pine , whose genetic gains of volume are 197% and 14% respectively.

对家系的遗传距离进行了聚类分析，确定了5个极速生家系、8个较速生家系，其材积增益与湿地松相比分别为44%和14%，与马尾松相比分别为197%和136%。

The hybrid breeding between Slash pine and Caribbean pine in Guangdong Forestry Research Institute began from 1990s.

广东省林业科学研究院系统开展湿地松与加勒比松P。

The carboxylation efficiency on May of 1 and 2 year needle of slash pine's half-sib was the lowest while the carboxylation efficiency on August to September of 1 and 2 year needle of slash pine's half-sib was the highest.

使用LI-6400便携式光合测定系统，研究了湿地松优良半同胞家系的光和CO2响应情况，结果表明：不同湿地松半同胞家系光响应曲线、CO2响应曲线的特征参数在家系品种间有极显著差异。

The map is compiled by some of the mathmatical models that is established according to the quantiative relations between the stand density of slash pine and the different factors of tree measuration, on the basis of data of 220 plots of slash pine in Guangdong, and the law of stand density effect.

用全省范围内调查所得的220块标准地作为编图、检验材料，以林分密度效应规律为基础，根据湿地松林分密度与林分各测树因子之间的数量关系，建立各种数学模型，编制出广东省湿地松人工林密度管理图。

Obviously, the nutrient cycles mechanism of Slash Pine is characterized by high nutrient use efficiency with low cycling rate, so in management of Slash Pine plantation, the relation between forest utilization and forest land tending must be dealt with rationally in order to prevent forest land degrading.

可见湿地松具有高养分利用率、低循环速率的循环机理，经营过程中应处理好养地与用地的关系，才能防止林地退化。

These are the seeds of the Stone Pine, a native of the Mediterranean region, but the seeds of various other pines are eaten in various parts of the world including the seeds of the Korean Pine or North American pinon tree.

这些种子的石松树，一个土生土长的地中海地区，但种子的其他各种松树吃在世界各地，包括种子的红松或北美克皮诺树。

When Pine Car is placed alongside Zoo Pond and Bamboo Car , Feng completes the Chinese scholarly allusion triumvirate of stone, pine, and bamboo.

当"松树白车"与"动物园狮虎馆假山"和"竹子白车"同时出现成为被摄对象的时候，封岩完成了"松、竹、石"三大在传统中并列的隐喻与今日生活关系的探索，形成一种新的、奇特的文本脉络。

Look at the foreground, those Off-the leaves on the trees covered with a bushy Liang Jingjing the Yintiao infants, and those of winter and summer evergreen pine and cypress, pine is covered with a fluffy snowball heavy the child.

看近处，那些落光了叶子的树木上挂满了毛茸茸亮晶晶的银条儿，而那些冬夏常青的松树和柏树上，则挂满了蓬松松沉甸甸的雪球儿。

In a wild pond, long tall and straight with a green pine tree, pine tree lives a little squirrel.

在一个野外的池塘边，长着一棵苍翠挺拔的松树，松树上住着一只小松鼠。

The company has been established in 2001, has the self-management import and export power, uses the advanced technology and the management pattern, the production camphor tree pine, the white pine, Wooden Material, Combines and so on the woodware.

公司成立于2001年，有自营进出口权，采用先进的技术和管理模式，生产樟松、白松、杨木集成材、拼板等木制品。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。