荷包里的单人床全文:有谁知道在线翻译材料英语的网站啊？

是金属材料的英语，有关马氏体等温转变的文章。
比如：More accurte estimations of the transformations at a continuously varying temperature are made by using the so called themokinetic,or anisothermai diagrams of austenite transformations,which characterize the transformation at various cooling rates.
though isothermal transformation diagrams can give us much konwledge on the nature of transformations,the transformations can only seldom be achieved under isothermal conditions in practice.
with avery quick transformation,the process of decomposition is attained .this is why the isothermal transformation diagrams are quite inaccurate for holding times less than 10s.
when large sections are heat treated ,it is impossible to meet another important conditionsessential for the construction of a diagram ,i.e. quick cooling to the given temperature .isothermal austenite transformation diagrams are of great theoreticl significance but are superseded by anisothermal diagrams in practical cases of selecting heat treatment conditions .
the cooling conditions have been studied quite thoroughly.it is possible in laboratories to imitate the conditions of cooling large massive articles and in various quenchant on small specimens.end of transformations are determined by dilatometric (by changes in the dimensions of specimens)or magnetic (austenite is non-magnetic and its products are magnetic)method,the experimentally found cooling curves and the points of transformation are then polotted in a temperature time diagram and the sections of like transformations are combined into regions.
up to this point ,we have considered only schematic diagrams of austenite transformation.for exhaustive information on the transformation a particular grade of steel,however ,use is made of both types of the diagram and of some additional data:grade and composition of the steel,heating temperature,austenitic grain size ,properties (at lesat hardness)of decomposition products,and proportion of the constituents.