While iterating through the cells, test their data types, as in Listing 7.
在遍历单元格时，测试它们的数据类型，如清单7所示。
Before using objects like rows and cells, be sure to test them to make sure they are not null.
在使用行和单元格这样的对象之前，一定要测试它们，确保它们不为空。
Their embryos stayed in the U.S. laboratory but the test cells were flown to Oxford for analysis.
他们的胚胎保存在美国的实验室，而供检测的细胞被空运到牛津进行分析。
We can easily introduce changes among the cells or insert a few tumor cells to test the abilities of the nanoparticles to recognize them.
我们可以轻松地对现有细胞进行调整或注入一些肿瘤细胞用于测试纳米粒识别出它们的能力。
They were sent up with early space flights to see how human cells coped with zero gravity and exposed to radiation to test the effects of nuclear weapons.
这些细胞随着早期的航天飞行被送上太空，用以观察人类细胞在失重的状态下如何存活，并将它们暴露在辐射中用以测试核武器的影响。
Plenty of other animals have been treated with stem cells, but normally it's to test stem cell therapy's efficacy and safety for eventual use in humans.
此前有很多其他的动物也接受过干细胞的治疗，但那一般只是为了测试干细胞疗法的效果和安全性，以便于最后运用到人类身上。
Scientists now want to test whether these blood cells can be safely transferred into humans, similarly to a normal blood transfusion.
科学家们目前想要测试这种血细胞是否能安全地输入人体，输血方式类似普通的输血方式。
Data resides in column cells, and it is typically typed based on what is expected by the application under test.
数据存在于列之中，它的类型由被测试的应用程序决定。
Pharmaceutical companies are using heart cells grown from iPSCs to test drugs for cardiac side effects, a common reason that promising drugs fail.
医药公司使用由万能干细胞生长而成的心脏细胞做心脏病药物的副作用测试，副作用是很多看起来很有希望的药物最终未能成功的一大原因。
And in Sweden, Parmar says that similar experiments are under way to test whether her team's human cells benefit animals with the disease.
在瑞典，Parmar说，类似的实验也正在进行，以测试她的团队的所研究出来的人类细胞能否使动物受益。
It will involve no more than a dozen patients and is not designed to test the effectiveness of the cells.
它将纳入不超过12个患者并且不是被设计来测试这些细胞的有效性的。
Diagnosis: eye drops would be used in the test to highlight diseased cells at the back of the eye.
诊断：检测中使用眼药水来突显眼睛后部的病变细胞。
As with any screening test, and most vaccines, the process is not 100 percent effective, and a small number of women with precancerous cells escape detection with false negative tests, for example.
如同大多数疫苗一样，任何筛选试验的程序都不是百分之一百的有效。举例来说，有一小部分妇女的癌前期病变细胞在筛选试验中显示假阴性而逃过了检测。
To test this possibility, Bieniasz's team engineered an unrelated mouse retrovirus coated with the envelope protein that would have allowed the ancient chimpanzee virus to slip into cells.
为了检验这种可能性，Bieniasz的团队设计了毫不相关的涂有包膜蛋白的老鼠反转录病毒，这种病毒容许黑猩猩病毒进入细胞。
His new cells will provide the test bed for that hypothesis.
他的镜像细胞将会为这种假设提供试验平台。
That makes them of particular interest to medical researchers hoping to test possible drugs and, in the longer term, to use stem cells to help repair human tissues.
这引起了医药研究人员特殊的兴趣。他们希望测试可能有的医药，从更长远来看，使用干细胞帮助修复人类器官。
Professor Nakauchi said they hoped to further test the technique by growing other organs and were also seeking permission to use human stem cells.
中内教授说他们希望通过生成其他器官进一步检测这一技术，同时他们也努力争取被允许使用人体干细胞。
To test the idea, the researchers measured the density of sweat pores. Because they knew that touch receptor cells cluster around sweat pores.
为了验证这一想法，研究人员又测量了志愿者指尖的汗毛孔密度，因为他们知道触觉受体细胞总是聚集在汗毛孔周围的。
It is one thing to manipulate cells in a test tube, quite another to treat people.
用试管做细胞实验是一回事，用于人身上又是另一回事了。
The dye is absorbed by dead salmonella cells; thus, the PCR test can ignore the dead cells.
这个染剂会被已经死亡的沙门氏菌细胞吸收，这样PCR检测便能忽略死亡细胞。
In a test tube, the lymphocytes are perfectly capable of killing tumor cells.
在试管中的这些淋巴细胞对肿瘤细胞有很强的杀伤能力。
Mustapha's modification lets food scientists use the PCR test to capitalize on its speed, selectivity and sensitivity, but avoid false-positive tests by differentiating between dead and live cells.
幕斯塔法的修改使食品科学家在使用PCR测试时，可以有效利用其高效性、有选择性和敏感性，并且通过区分死亡细胞和活细胞避免误测。
Such virus-free cells could eventually be used to test new cardiac drugs, or for stem cell-derived implants to help patients whose cardiomyocytes die in a heart attack, according to Hopkins.
根据霍普金斯的看法，这样子的无病毒的细胞可以最终被用来检验新的心脏疾病的药，或用来帮助因心脏病而心肌细胞坏死的病人进行干细胞移植。
They now plan to try growing ovary stem cells from common frogs and, when they find a technique that works, remove some of the yellow-legged frog cells from the cryogenic chamber and test it on them.
他们现在决定培育普通青蛙的卵巢干细胞，等他们掌握了关键技术后然后再从冷冻室内取出黄退青蛙的细胞进行试验。
Scripts that perform repeatable and test-able tasks provide confidence in knowing that changes made in one cell can be propagated to the other cells.
反复运行的脚本和可测试的任务使您能够了解到某个单元中发生的改变可以被传递到其他单元。
Geron, based in California, is the first American firm to test a treatment using human embryonic stem cells.
总部设在加利福尼亚的杰龙是第一家对使用人类胚胎干细胞的治疗进行测试的美国公司。
The success with the animal model prompted the team to study in test tubes whether minocycline treatment affected latency in human t cells infected with HIV.
动物实验的成功促使研究小组进行试管研究，以确定二甲胺四环素疗法能否影响感染HIV的人类T细胞的潜伏病毒。
"If you have got a bunch of stem cells sitting in a test tube, that is a long way from being a beautifully, anatomically organised organ like a kidney, which is quite a complicated structure."
即使你试管里有一大堆干细胞，但你离拥有一个漂亮地，结构上像肾脏一样复杂的组织器官还很远。
"If you have got a bunch of stem cells sitting in a test tube, that is a long way from being a beautifully, anatomically organised organ like a kidney, which is quite a complicated structure."
即使你试管里有一大堆干细胞，但你离拥有一个漂亮地，结构上像肾脏一样复杂的组织器官还很远。
应用推荐