| 释义 |
Picea sitchensis
基本英英近义反义例句
美国西加云杉
Noun:
a large spruce that grows only along the northwestern coast of the United States and Canada; has sharp stiff needles and thin bark; the wood has a high ratio of strength to weight近义词 Sitka spruce锡特卡云杉
The biological and ecological characteristics as well as habitat condition of Picea sitchensis have been briefed; meanwhile the study direction of its species introduction has been advanced.
简要介绍了西加云杉的生物生态学特性及其生境条件，并提出了该树种引种的研究方向。 cnki
This paper reports in vitro rejuvenation and vegetative propagation of plus Sitka spruce Picea sitchensis trees.
本文报导西加云杉优树离体复壮与无性繁殖。 cnki |