查询词典 birch bark

The DSC analysis showed that the cold-setting process of PRTF copolymer resins was an exothermic reaction, and the heat flow appeared mainly at the initial stage after the hardener added, and then trended to relax. The PRTF-B7 copolymer resin made from China fir bark extractives had the exothermic peak more obvious than those made from Taiwan acacia bark extractives.

以DSC分析显示其硬化过程为一放热反应，且在硬化剂添加后之初期反应较为明显，随后即趋於平缓，以杉木树皮萃取物为原料之PRTF-B7共聚合树脂有较明显之放热峰。

Birch Reduction, one of the most powerful synthetic methodologies available to organic chemists, provides a bridge between aromatic and aliphatic compounds and makes a huge arsenal of aromatic derivatives readily available for construction of alicyclic molecules, which are possibly converted into various natural products.

Birch还原是联接芳香族和脂肪族化合物的桥梁，它使许多芳香族衍生物成为合成脂肪族化合物，尤其六元脂环天然产物的起始原料，因此Birch还原是有机合成中很有用的方法。

In the 1100 meters - 1500 meters of hillside, apricot, shrubs, birch trees and other lush.

在1100米——1500米的山坡上，山杏、灌丛、白桦等各种林木郁郁葱葱。

This preferred choice of massage therapists throughout the world is formulated with rejuvenating organic Arnica Extract and organic Birch Leaf Extract.

这款广受好评的按摩油，其配方是能使肌肤充满活力的有机山车精华和有机白桦叶精华。

One is the effect of LT crack of wood on wood transverse bending property. Birch, ash tree, walnut are studied, and it appears that under the bending loads the bending strength of the beam with crack will decrease, but not obviously .

第一部分研究了木材LT型裂纹对木材横纹理弯曲性能的影响，在对桦木、水曲柳、核桃楸的研究中，发现含LT型裂纹的横梁在弯曲载荷的作用下，其弯曲性能会有一定程度的下降，但降幅并不明显。

Hebei use of state-owned forest primeval forest, as well as Russia's high-quality Ash tree, birch, poplar, oak for the production of raw materials, with a production history of more than 10 years old timber processing enterprises.

采用鹤北国有林区以及俄罗斯原始林的优质树种水曲柳、桦木、杨木、柞木为生产原料，是一家具有10多年生产历史的老牌木材加工企业。

The drooping branches of the birch-trees swayed in the wind, and dripped bright drops aslant across the road.

乡村道路上总是生长着的卷曲的小草，由于夜雨的湿润看起来更加鲜亮了；低垂的白桦树枝条湿漉漉的，轻风吹过摇摇晃晃，斜斜地撒下晶莹的水珠。

See " From the Aspen and Birch Trees " for more information.

请看"来自白杨和桦树"以的信息。

We produce all the toys are high-quality timber, commonly used include: beech, rubber wood, birch, basswood, pine, MDF, plywood and so on.

我们生产的所有玩具均采用优质木材，常用的包括有：榉木、橡胶木、桦木、椴木、松木、MDF、夹板等。

The tree species have greater impact on primary physical and mechanical property of LVL beams, Birch LVL beams have better property than basswood LVL beams.

其主要物理力学性能受树种的影响较大，桦木LVL梁的主要性能均优于椴木LVL梁。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。