The most important service einstein rendered was his demonstration that two types of transitions exist . 爱因斯坦的最伟大功绩就在于他证明了存在两类跃迁。
Only two types will be included in present discussion: metal-ion deactivators and peroxide decomposers . 本节只讨论其中的两类：金属离子钝化剂和过氧化物分解剂。
There are two plane problems in the theory of elasticity, the problems of plane strain and of plane stress . 弹性理论中有两类平面问题，即平面应变和平面应力问题。
Both types of traps are identified and analyzed best in the subsurface by relating them to lighologic time marker . 这两类圈闭根据其与岩性时间标志层的关系而极易进行地下的鉴定与分析。
They can be divided into two classes, those which are castable and those which must be processed by extrusion or compression molding . 它们可分为两类：可浇铸的和必须由挤压或模压加工的。
Since the pharmacological actions of both classes of anti-che agents are qualitatively similar, they will be discussed as a group . 鉴于这两类抗-ChE药的药理作用性质相似，故作为一类药物讨论。
plants which photosynthsize can be classified into those with high and those with low compensation points. 进行光合作用的植物，可以分成具有高补偿点的和具有低补偿点的两类。
Each type of indicator series serves to qualify or to support the information or evidence supplied by the other two categories . 每类指标数列对其他两类指标数列所提供的资料或给予支持，或证明其合格性。
We shall also consider the two types of surface waves, rayleigh waves and love waves, most widely observed in seismic prospecting and earthquake seismology . 我们也要研究在地震勘探和天然地震中最经常观测到的两类面波--瑞利波和乐甫波。
The historicist's notion of sociology can be further clarified by following up the distinction i have drawn between the two different kinds of prognosis . 仔细考察我所作出的两类预测之间的区别，就可以进一步澄清历史决定论者的社会学概念。
