68. It is not known how rare this resemblance is，or whether it is most often seen in inclusions of silicates such as garnet，whose crystallography is generally somewhat similar to that of diamond； but when present，the resemblance is regarded as compelling evidence that the diamonds and inclusions are truly cogenetic. 现在尚不知这种类似稀少到何种地步，也不知道是否它最常见于象石榴石一类的硅酸盐内含物中，而这类物质的晶体结构普遍地在某种程度上类似于金刚石的晶体结构。但一旦存在，这种类似就被视作极有说服力的证据，证明金刚石与内含物确是同源的。
69. Even the "radical" critiques of this mainstream research model，such as the critique developed in Divided Society，attach the issue of ethnic assimilation too mechanically to factors of economic and social mobility and are thus unable to illuminate the cultural subordination of Puerto Ricans as a colonial minority. 即使是对这一主流研究模型的"激进"批评，诸如《分裂的社会》（Divided Society）一书中所提出的那种批判，亦将少数民族同化问题过分机构地与经济和社会移动性的因素联系起来，因此无从阐明波多黎各人作为一个殖民地少数民族的文化从属关系。
70. They are called virtual particles in order to distinguish them from real particles，whose lifetimes are not constrained in the same way，and which can be detected. 它们被称为"虚粒子"（virtual particle），以便与实粒子（real particle）区分开来，而实粒子则不会以这种方式受到制约，并且其存在可得以测定。
71. Open acknowledgement of the existence of women's oppression was too radical for the United Stated in the fifties, and Beauvoir's conclusion, that change in women's economic condition , though insufficient by itself , "remains the basic factor " in improving women's situation , was particularly unacceptable . 公开对妇女压迫的存在的承认对于50年代的美国而言有些过分激进，而且B的结论，即妇女经济状况的变化，经管它本身不是一个充分的因素，但是"仍然是提高妇女地位的根本因素"的观点，尤其无法令人接受。
72. Other theorists propose that the Moon was ripped out of the Earth's rocky mantle by the Earth's collision with another large celestial body after much of the Earth's iron fell to its core. 其他的理论家提出，在地球的大部分铁沉入到地核之后，由于地球与另一个庞大的天体发生碰撞，月亮便从地球那石质的地幔中撕裂开来而形成的。 Rip:撕开；拨去；在本文是撕开的意思。
73. However, recent scholarship has strongly suggested that those aspects of early New England culture that seem to have been most distinctly Puritan, such as the strong religious orientation and the communal impulse, were not even typical of New England as a whole, but were largely confined to the two colonies of Massachusetts and Connecticut. 然而，进来的学术研究强烈的显示那些看来最为明确的请教徒的早期新英格兰文化的一些方面，比如强烈的宗教导向和团体意识，就整体而言却不是新英格兰的典型特征，而是在很大程度上只局限与马萨诸赛和康涅狄格两个州。
74. Thus，what in contrast to the Puritan colonies appears to Davis to be peculiarly Southern- acquisitiveness，a strong interest in politics and the law，and a tendency to cultivate metropolitan cultural models-was not only more typically English than the cultural patterns exhibited by Puritan Massachusetts and Connecticut，but also almost certainly characteristic of most other early modern British colonies from Barbados north to Rhode Island and New Hampshire. 因此，那些与（北方）清教殖民地形成鲜明对比、并在戴维斯教授的心目中显得具有特殊南方色彩的特征——占有欲、对政治和法律的浓厚兴趣、以及培养大都市文化模式的倾向——不仅仅要比清教的马萨诸塞州和康乃涅克州所展现出来的文化模式更具有典型的英国色彩，并且几乎毫无疑问地构成了绝大多数其它早期近代英国殖民地的特征，从巴巴多斯北至罗得岛和新罕布什尔州。
75. Portrayals of the folk of Mecklenburg County, North Carolina, whom he remembers from early childhood, of the jazz musicians and tenement roofs of his Harlem days, of Pittsburgh steelworkers, and his reconstruction of classical Greek myths in the guise of the ancient Black kingdom of Benin, attest to this. 一些描述，关于他从小就记得的北卡罗来纳州的M县的人民、关于他在H的日子里的爵士乐手和公寓的房顶、关于匹兹堡的钢铁工人的描述和他的假借古代B国对古希腊神话得宠俗，都表现了这一点。In the guise of :"假借、在……的幌子下，假装".
76. A very specialized feeding adaptation in zooplankton is that of the tadpolelike appendicularian who lives in a walnut-sized （or smaller） balloon of mucus equipped with filters that capture and concentrate phytoplankton. 浮游动物体内一种极特殊的进食适应性变化是蝌蚪状的尾海鞘纲动物（appendicularian）的那种适应性变化，而尾海鞘纲动物则存活于核桃大小（或更小）的黏液球囊内，装备有过滤器，用以捕捉和集中浮游植物。
77. These historians，however，have analyzed less fully the development of specifically feminist ideas and activities during the same period. 但是，这些史学家还不曾充分地分析同一时期中那些具体的女权主义思想和活动的发展。
78. Apparently most massive stars manage to lose sufficient material that their masses drop below the critical value of 1.4 M before they exhaust their nuclear fuel. 显然，大多数的巨星能够失去足够多的物质以至于在燃尽其核燃料以前他们的质量下降到关键值1.4M以下。难在：sufficient ……that…… = so much （many ） …… that……
79. This is so even though armed forces operate in an ethos of institutional change oriented toward occupational equality and under the federal sanction of equal pay for equal work. 即使是武装部队是在一种趋向职业平等的制度变迁的风气中运作的时候，而且即使部队是在联邦政府的同工同酬的约束下运行的时候，情况仍然是这样。
80. An impact （on the Mars） capable of ejecting a fragment of the Martian surface into an Earth-intersecting orbit is even less probable than such an event on the Moon, in view of the Moon's smaller size and closer proximity to Earth. 一个能够把活性表面的碎片射入地球交叉轨道的碰撞发生的可能性甚至小于这种事件在月亮上发生的可能性，考虑到月亮更小的尺寸及其与地球接近的程度。
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81. Not only are liver transplants never rejected，but they even induce a state of donor-specific unresponsiveness in which subsequent transplants of other organs, such as skin,from that donor are accepted permanently. 但是，我们已经发现，在许多种老鼠之间，这些移植法的"常规"并没有被肝脏移植物所遵循。肝脏移植物非但从没遭到过排斥，甚至还诱发了一种供者特异性无应答状态（donor-specific unresponsiveness），在此状态中，随后来自那个供者其它器官的移植物，如皮肤，会永久地被接受。
82. As rock interface are crossed, the elastic characteristics encountered （by seismic waves）generally change abruptly, which causes part of the energy to be reflected back to the surface, where it is recorded by seismic instruments. 当岩石界面被穿过的时候，震波所遇到的弹性性质通常会发生突然的变化，这就使得一部分能量被反射回地面，在地面反射回来的波被震波纪录仪记录下来。
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