羟基

The results show that the second - order derivative peak potential of 2,4 - dihydrobenzophenone is - 1.20 V

实验表明，在pH4.30的B—R缓冲溶液中，2，4-二羟基二苯甲酮的二阶导数峰电位为-1.20V

Self-solidifying hydroxyapatite/2.5% norvancomycin composite and self-hardening calcium hydroxide were applied as pulp capping agents in the experimental and control groups, respectively.

实验组用自凝羟基磷灰石/2.5%去甲万古霉素复合物作为盖髓剂，对照组用可硬化氢氧化钙作为盖髓剂。

The self-repairing layer is formed on the surface of 45 steel at 600N load and 30 hours wear time.

文中采用表面修饰的羟基硅酸镁作为润滑油添加剂，研究硅酸盐添加剂

Objective: To prepare 10-hydroxycamptothecin -semisolid lipid nanoparticles and investigate its stability.

目的：制备10-羟基喜树碱的半固体脂质纳米粒并考察其稳定性。

Objective:To prepare hydroxycamptothecin semisolid lipid nanoparticles.

目的：制备羟基喜树碱的半固体脂质纳米粒。

Objective To study the potential sensitiveness of hydroxyapatite-collagen artificial bone.

目的 研究羟基磷灰石-胶原人工骨材料潜在的皮肤致敏性。

The thesis aims at the studies on the synthesis of polyol dihydroagarofuran sesquiterpenes, the synthesis of isodaucane sesquiterpene and the biological activities of sesquiterpenes.

本论文以α--山道年为原料，对多羟基二氢沉香呋喃倍半萜的合成，Isodaucane倍半萜的合成和部分一些化合物的生物活性进行了研究。

Results show that the antibacterial component belongs to volatile oil、sesquiterpene、phenols and organic acids. The antibacterial part of the broth was isolated by silica gel column and 6 fractions of obviously antibacterial activity were obtained .By further study Fractions 1、2、3 contain sesquiterpene and fractions 8、9 contain phenols and fraction 10 contains phenolic organic acid.

对发酵液抑菌成分的研究表明，抑菌活性成分组成为挥发油倍半萜、酚和有机酸等类化合物，采用硅胶柱层析对发酵液抑菌活性部位进行分离实验，得到了6个具有明显抑菌活性的粗组分（组分1、2、3、8、9、10），其中组分1、2、3含有倍半萜类物质，组分8、9含有酚类物质，组分10中有含酚羟基的羧酸类物质。

Charles Darwin was born in Shrewsbury, England on February twelfth, eighteen-oh-nine.

查尔斯达尔文在1912年出生，于二月十二，18羟基- 9英格兰。

D-p-hydroxyphenylglycine is one of the important side chain in the semi-synthetic-lactam antibiotic molecules widely clinically used in the world.

D-对羟基苯甘氨酸(D-p-hydroxyphenylglycine，D-HPG)是临床上广泛使用的半合成β-内酰胺类抗生素的重要结构部分。

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。