birch(Betula)是什么意思

用法例句

On the basis of 18 references in the recent decade, chemical constituents of Betula L.

桦木(属)植物主要含有三萜、黄酮、木脂素、二苯基庚烷等酚类 。

Discussions on taxonomy of genus Betula in northeast China;

中国东北林区桦木(属)(Betula)分类探讨(英文)

New taxa of Betula L. from Xinjiang China;

新疆桦木(属)(Betula L.)新分类群

Study on the Birch Veneer Dyeing Technologies of the Color Fastness to Water;

染色工艺对染色桦木单板耐水牢度的影响

The Properties of Small Diameter Birch Timber Driedunder Different Conditions;

不同干燥条件下小径桦木材性指标的研究

Study on bonding properties of larch Birch and Oak Glue-laminated timber with API adhesive;

落叶松、桦木和柞木集成材胶接性能的研究

Ni-P alloy was deposited on the surface of birch veneer by using ultrasound-assisted electroless plating method.

利用超声波辅助化学镀法在桦木单板表面沉积Ni-P合金镀层。

Ni-P alloy coating was obtained by electroless plating on the surface of birch veneer.

利用傅立叶红外光谱(FTIR)和X射线光电子能谱(XPS)技术,分析桦木单板化学镀前预处理后,桦木表面官能团的变化和化学镀后元素的变化。

Continuous and uniform layer of Nickel was obtained on the surface of birch veneer through electroless plating in order to produce wood-metal composite which has electromagnetic shielding properties.

通过对桦木单板表面化学镀镍,可以得到连续、均匀的镀层,从而制得具有良好导电性和电磁屏蔽功能的木材-金属复合材料。

Research of extrusion composite technology of birch fiber and polypropylene;

桦木锯屑/聚丙烯挤出复合技术研究

RP-HPLC determination of betulinic acid in Callicarpa macrophylla;

RP-HPLC测定大叶紫珠中桦木酸的含量

Antitumor activity of betulinic acid and its apoptotic on KB cell lines;

桦木酸的抗肿瘤作用及其诱导KB细胞凋亡的研究

Experimental study of betulinic acid sensitivity to human tumor;

桦木酸对人肿瘤细胞的抗癌活性筛选

The difference of properties of silicone/acrylic acid/polyurethane UV cure resin,acrylate/epoxy resin and acrylate/polyurethane resin in the application of UV birch floor coating was compared.

比较了有机硅 /丙烯酸酯 /聚氨酯树脂与丙烯酸酯 /环氧树脂及丙烯酸酯 /聚氨酯树脂用作UV桦木地板涂料时的性能差异 ,发现前者较后两者的耐黄变性能更优异。