这是一个全球性的记录：在取自不同大陆位置的沉积标本中，同位素比率的变化非常小。
It is a global record: there is remarkably little variation in isotope ratios in sedimentary specimens taken from different continental locations.
样本当然非常小，因为标本很少而能用来做实验的样本就更少了。
The sample size is of course very small, with specimens rare and samples for experimentation rarer.
在这项最新的发表在PNAS上的研究中，科学家仔细考察了一块奇特的化石标本“小盗龙”（mircoraptor），这块化石上的四肢全部都有羽毛，有点类似两栖飞机（bi-plane）。
In the newest PNAS study, scientists examined a remarkable fossil specimen that had feathers on all four limbs, somewhat resembling a bi-plane.
本书中有时也能发现我们赠送给读者的“小礼品”，一些大体标本的观察，例如先天性肾缺如的患者，其肾上腺是圆形的而不是成角的。
Some gross observations occasionally will be found as lagniappe, such as the notation that in patients with congenital absence of a kidney, the ipsilateral adrenal will be round rather than angulated.
但这件标本没有羽轴，带状尾巴上只有羽枝和小羽枝。
But this specimen lacked the rachis; it just had barbs and barbules down its ribbonlike tail.
试样的安装通常是小的，脆弱的，或形状奇特的标本，骨折，或在试样边缘的情况下加以考察。
Mounting of the specimen is usually performed on small, fragile, or oddly shaped specimens, fractures, or in instances where the specimen edges are to be examined.
甲状腺手术切除标本，为一小肿块，被切为两半。
Here is a surgical excision of a small mass from the thyroid gland that has been cut in half.
他们发现，平均来说，被猎杀标本的大脑尺寸比因其他原因死亡的鸟类小百分之五。
And they found that the hunted specimens' brains were actually five percent smaller, on average, than the brains of birds that died by other means.
O’Connor博士和她的同事们发现的是在“小盗龙”标本的胃中发现的还没消化完的一种这些鸟类中的一员，目前还没确认的物种。
What Dr O'Connor and her colleagues have found is the remains of one of those birds, of an as-yet-unidentified species, in the stomach of a specimen of Microraptor.
方法：应用MTT显色分析法测定40例非小细胞肺癌实体瘤标本对9种化疗药物及其组成的联合化疗方案的敏感性或耐药性，并比较结果。
Methods: the drug sensitivity or resistance of 40 NSCLC samples to 9 chemotherapeutic drugs and combined chemotherapy were detected by MTT colorimetric assay, and compared the results.
填充的蝙蝠标本周围布置了许多小甲虫，这是一种维多利亚式的怪癖。
The stuffed bat is surrounded by mounted beetles. It's a Victorian oddity.
病变长度从大到小顺序依次为CT、手术标本、X线钡餐和固定后标本。
Lesion lengths are from top to bottom CT, intraoperative specimen, X-ray barium meal and formalin-fixed specimen.
病变长度从大到小顺序依次为CT、手术标本、X线钡餐和固定后标本。
Lesion lengths are from top to bottom CT, intraoperative specimen, X-ray barium meal and formalin-fixed specimen.
应用推荐