物理化学的

In the study, physical and chemical mutagenesis and protoplast fusion technique were used to select strains with low-yielding diacetyl, acetaldehyde, total higher alcohols and other excellent characteristics.

本研究采用物理化学诱变和原生质体融合的方法，选育具有低产双乙酰、乙醛和总高级醇等优良特性的啤酒酿造酵母菌株。

It is also important to improve the physico-chemical and electrocatalytic properties of these porous carbon materials.

此外改善这些介孔材料的物理化学以及电催化性质也是很重要的。

The author analyses on how the physical and chemical elements spoil halogenate silver negatives and meanwhile lists out some of the technigues and methods for preserving.

摘 要：分析了物理化学因素损坏银盐底片的作用机理，提出了银盐底片保管的新途径。

The Pt-Sn/CCA and Pt-Sn/γ-Al2O3 catalysts were prepared by impreg nation method. The acti vity at 300 ℃ or 350 ℃ and the stability at 450 ℃ of the catalysts were evalu ated, and the structure of Pt-Sn/CCA catalyst was generally studied.

采用共浸法制备了Pt-Sn/CCA催化剂，利用在线色谱微反实验装置评价了此类催化剂对甲基环己烷脱氢反应的活性和抗炭性能，初步研究了Pt-Sn/CCA催化剂的物理化学结构。

In this article the application and progress of organosilicon polymer in pulp and papermaking industry were reviewed.

以聚硅氧烷为基础的有机硅材料作为一种新型材料，具有特殊的物理化学性能，在许多工业领域中得到了广泛应用。

The reason is that the process of mixture is not pure physical one, but a physicochemical one.

造成这一差别的原因主要是混合过程并不是完全的物理过程，而是物理化学过程。

In such process , human beings may encounter new physicochemical effect which could used to accelerate such transfer.

在这一过程中，人类可能还会发现新的物理化学效应来实现并快捷的完成这种转换。

ABSTRACT In this paper, kinetic model of chemical reaction film in the condition of extreme pressure lubrication is set up from the point of physicochemistry and tribochemistry.

本文从物理化学、摩擦化学的观点出发，建立了极压润滑条件下化学反应膜形成的动力学模型。

Cot1/2 is the product of concentration and time required for 50% reassociation given in nucleotide-moles × second/liter.

对DNA分子的物理化学研究导致了现代生物学翻天覆地的革命，这更是Avery所没有想到。

The physical and chemistry simulation on TSA process was established, and the mechanism of thaumasite formation was taken on further discussion.

摘 要：研究水泥砂浆试件在碳硫硅酸钙型硫酸盐侵蚀过程中的物理化学性能变化，对TSA过程进行模拟，进一步探讨碳硫硅酸钙的形成机理。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。