查询词典 ordeal bark

A spectrophotometric method to measure the concentration of salicin in the water extract of willow bark was established based on the HCLO4 - Vanilin staining reaction with λmax of 520 nm.

以水为溶剂，50℃下超声提取柳树茎皮中的水杨苷，采用香草醛分光光度法，在吸收波长520nm下，建立水杨苷含量的测定方法。

In its natural form as willow bark and leaves, this remarkable remedy dates back to Hippocrates. In 1829 the chemical in the willow tree that can relieve pain and fever was discovered to be salicin. By 1899 the Bayer Company in Germany had marketed a variant, acetylsalicylic acid, under the name of aspirin.

柳树皮和柳树叶是其天然形式，这种疗效显著的药物可以回溯到希波克拉底时代。1829年，人们发现柳树中能止痛退烧的化学物质为水杨醇葡萄糖甙。1899年，德国拜耳公司上市了一种变种商品，命名为阿司匹林。

The ancient Greeks, for example, treated pain with a tea made by boiling willow leaves and bark, a tea modern scientists now know contains salicin, a precursor of acetylsalicylic acid—aspirin.

例如，古希腊人用柳叶和柳树皮煮成的茶水来止痛。现代科学家已经了解到，这种茶里面含有水杨苷成分，就是乙酰水杨酸——阿司匹林的前身。

By using high performance liquid chromatographycombined withthin-layer chromatography,three PG:salicin,salicortin and deltoidin weredetected in the bark of P.deltioides,Five kinds of PG were detected in the leaves,which included trmuloidin and tremulacin besides the three PG.

采用薄层色谱与高效液相色谱法相结合的方法，在实验材料的树皮中测定到三种主要的酚甙类物质：水杨甙、柳皮甙和美洲黑杨甙，在叶片中测定到5种酚甙类物质，除上述3种物质外，还包括2′-苯甲酰水杨甙和颤杨甙，对于后两者在前人的研究中未见报道。研究还对5种化学物质进行了分离。

The genetic parameters of leaf trait and bark trait were low while genetic parameters were higher from trait of samara and yield.

表型变异系数叶片性状和树皮性状的较低，而果实性状和产量性状的相对较高。

If timber poles are used, the bark can be peeled off the tops to expose the light colored sapwood

如用圆木杆，可削去顶端树皮，露出木质部的明亮色泽。

Sapwood is the lighter colored wood growing from inside the bark to the heartwood.

边材色泽较浅，是从树皮到新材之间的木质部分。

Yellowwood tree with brittle wood and aromatic leaves and bark; source of sassafras oil; widely distributed in eastern North America.

木质脆软的黄色木材，叶和树皮均有香味；檫木油的来源；广泛分布于北美东部。

Branchlets pale gray or gray-brown; bark scabrous, not nitid; seeds black, abaxially at base with short furrow.

小枝淡色的灰色或者灰棕色；树皮粗糙，不有光泽；种子黑色，背面的在基部具短棱槽。

The cough sounds like the bark of a sea lion and becomes worse at night.

咳嗽听起来像树皮的海狮和恶化在夜间。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。