针叶树

Made of the easy-to-cut wood of a coniferous tree, as e.g. pine .

由针叶树的容易切割的木材制成的，例如松树。

Australian conifer bearing two-inch seeds tasting like roasted chestnuts; among the aborigines the tree is hereditary property protected by law.

澳洲针叶树，种子长达两英寸，味道类似于烤栗子；土著把此树作为世袭的财产用法律加以保护。

Taxaceae A family of evergreen coniferous trees and shrubs, the yews, with needlelike or linear leaves.

紫杉科：包括常绿针叶树、常绿灌木、紫杉在内，具针叶或线性叶的一个植物科。

Moss-draped conifers and ferns populate Quinault, a Pacific rain forest in Washington State's Olympic National Park.

苔癣-装饰松柏类针叶树和蕨类填充奎诺尔特，一处太平洋雨林在华盛顿州的奥林匹克公园。

Theδ~(13)C of Robinia pseudoacacia and Fraxinus chinesis were gone beyond the range of C_3 plants,and the averageδ~(13)C of 7 trees under 720μmol·mol~(-1)CO_2 were higher than the average of C_3 plants,which is 27.0‰.

针叶树的叶δ~(13)C值高于阔叶树，叶δ~(13)C值明显小于枝条和根系的，刺槐和白蜡的δ~(13)C值超出了全球C_3植物的δ~(13)C值的极限范围，720μmol·mol~(-1)CO_2所有树种的平均值远高于C_3植物的平均值27.0‰。

The straw contains abundant cellulose. The content is close to that of hardwood and softwood.

而稻草中含有丰富的纤维素，其含量接近于阔叶树材或针叶树材。

The relationship between softwood longitudinal permeability and its structure was systematically studied based upon the principles of flow.

文首次提出搭接面及侧面胞壁上纹孔在流体纵向渗透时的不同作用，并运用流体力学的原理，对针叶树木材流体纵向渗透性与其构造的关系进行了系统分析。

Domestic guinea pigs usually are kept in plastic cages with softwood chip bedding.

国内豚鼠通常存放在塑胶鸡笼与针叶树芯片寝具。

Tricholoma may be a paraphyletic genus two. The collections identified as T. caligatum is a mixture. Some parts of them from France are members of T. matsutake, the other parts from North America are closed to T. bakamatsutake and T. fulvocastaneum. Tricholoma robustum and T. focale form a clade which is obviously a sister group of the stirp Subannulate. The stirp Caligata was defined as a group mainly on the basis of the predominant veil. But from the result of molecular systematic analysis, the presence of veil is not a stable character in the matsutake group. Species having symbiosis with conifers and broad leaf tree are all transformed from those whose host specificity is not strict. The phylogenetic tree based on ITS sequences resembled the tree of NJ algorithm based on cladistic coding. In the phylogenetic tree based on morphylogical characters, T. zangii and T. bakamatsutake form a clade, but it is the result of convergent evolution as suggested by molecular analyses. The distribution area of the matsutake group can be divided into six regions: middle and northern Europe region, Mediterranean region, Hengduan Mount.— Southeastern Tibet region, Northeastern China—Japan—Far-east Russia region, the Atlantic—North America region and the Rocky Mountain region. The abundance center of the matsutake group are Hengduan Mount.—Southeastern Tibet region and the Rocky Mountain region. Hengduan Mount.

松口蘑群的分子系统学研究得出的结果有：由于粗壮口蘑和羽衣口蘑明显和亚环族(Tricholoma，section subannulate)的种类是来自同一个谱系，和其它松口蘑群的种不具有最近共同祖先，因此松口蘑群是一个多系群；松口蘑群和口蘑属其他种类的亲缘关系比和蜜环菌属更接近；梭柄松苞菇和松口蘑群的差距明显小于油黄口蘑(T.flavovirens)和棕灰口蘑；口蘑属是一个多系群；鉴定为欧洲口蘑的标本明显不是一个单系群，其中一部分是松口蘑，另一部分和黄褐口蘑及傻松口蘑(T.bakamatsutake)比较接近；划分松口蘑群的标准是菌环的存在，但从分子系统学的结果来看，菌环的存在与否并非是一个很稳定的性状；和针叶树专性共生及和阔叶树专性共生均由寄主专化性不强的种类转化而来；在形态学系统发育树上青冈口蘑和傻松口蘑被聚为一个分枝，分子系统学的研究结果表明，这是趋同进化的结果；用支序方法编码作出的NJ树的结果更接近ITS序列的结果。

Kaizuca, Camellia japonica L.,Ginkgo biloba L., Celtis sinensis Pers., Zelkova schneideriana Hand.-Mazz., Acer truncatum Bunge, Albizia julibrissin Durazz., Ailanthus altissima Swingle, Cerasus serrulataG.,Pistacia chinensis Bunge, Euonymas japonicus Thunb.Sabina konarovii Chent at W.T.Wang, Sabina chinensis cv.Pfitzeriana. 3.Tree planning on urban forestry construction of Qingdao city is based on trees investigation,analyses, appraise and under the guidance of the theories on city ecology, ecological landscape, scenic aesthetics, city planning and etc.

青岛市城市森林建设的树种近自然化规划：树种布局规划应以树种调查、分析、评价为基础，以城市生态学、生态园林学、风景美学、城市规划学等理论为指导，并综合青岛市所在植被分布自然规律和城市森林建设现状，因地制宜的确定城市树种的主要比例关系：常绿树与落叶树的比例以3：7为宜；乔木与灌木的比例以2：1为宜；针叶树与阔叶树的比例以1：4为宜；木本植物与草本植物之比1：4；速生树与慢生树的比例以1：1为宜。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。