查询词典 futile

Artificially induced a single 〓elevation could effectively drive the activation, in recently ovulated oocytes (12—13 h after hCG) however, a single Ca〓 increase was futile in initiation of activation and only repetitive 〓 rises were avalable, suggesting that the activation of recently ovulated oocytes requires oscillatory Ca〓 signals as occuring at fertilization.

只有诱导卵内Ca〓多次升高才能使之激活。提示：刚排出不久的卵激活象受精一样需要胞质Ca〓波动信号。

To fight it feels futile because I feel it perpetuates the myth.

我现在这么否认好像也挺无济于事，因为只会让这些传闻继续散播下去。

Had it been left to him, he would have puttered around feebly, gardening in his own futile and individualistic way.

如果不加以组织，各个农民势孤力弱，就只能用那老一套的效率低下的单干方式种地。

2 To Egypt whose help is futile and vain. Therefore I call her ＂ Rahab quelled.

埃及人的援助是无用的，是空虚的，因此我称呼她是＂静坐的辣哈布。

And we all know that having the answers before a test renders it futile.

我们都知道在测验之前就知道答案的话，那么这样的测验就是无效的。

The mind that renounces once and forever a futile hope has its compensation in ever-growing calm.

永远丢掉无望的幻想，你的灵魂就会在永恒的宁静中得到补偿。

Overlapping of the two roles may be unavoidable, but there should be no futile second-guessing of each other's motives and deeds.

两者角色的重合也许是不可避免的，但不应对彼此的动机和行为进行无谓的事后批评。

This is not only futile in the short run, but more importantly, by discouraging investigations with no obvious immediate payoff, it shortchanges the future.

这不仅在短期内可能是徒劳的，而且更重要的是，如果只重眼前利益，而轻视那些不会带来直接回报的研究，那么最终遭殃的还是我们的未来。

The study was designed so that 215 patients would be randomized to each group (for a total of 430 patients), thus allowing enough power to detect a difference of 15% in the number of futile thoracotomies between the 2 groups, write the authors.

作者们写道，该研究原本希望每组病患有215人(总共430人进行随机分组)，才可以有足够的强度发现两组之间无效的胸廓切开术数量有15%的差异。

July 1, 2009 — The frequency of futile thoracotomies is reduced by use of combined positron-emission tomography and computed tomography compared with conventional staging in patients with non–small-cell lung cancer, according to a new study.

July 1， 2009 —根据一篇新研究，相较於非小细胞肺癌的传统分期，併用正子放射断层造影术与电脑断层可以降低无效的胸廓切开术频率。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。