查询词典 experiments

Cockroach decapitation may seem macabre, but scientists have conducted many experiments with headless roach bodies and bodiless roach heads.

没有头的蟑螂丧失了他们身体内的荷尔蒙。

This thesis discusses the realization of the picture processing function of later phase in the process of PACS development. Basing on traditional digital image processing and according to the characters of medical images, we design the Mark Boff Chain edge detection algorithm basing on the distributing model of image grade scene, and has got good effect in the practical experiments; as to the system development, we design customizable DICOM standard analyzer, and use the trigger mechanism Callback to improve the analysis speed ,and adopt the system structure basing on the standard interface to reduce the modules coupling degree, and strengthen the stability of the system.

本文在PACS系统开发过程中，对其影像后期处理功能的实现进行了探索，在传统数字图像处理的基础上，根据医学图像自身所具有特点，设计出了基于图像梯度场分布模型的马尔可夫链边缘检测算法，并在实际测试中取得较好效果；在系统开发方面，设计出了可定制化的DICOM标准解析器，应用CallBack触发机制来提高解析速度，采用基于标准接口的系统架构体系降低了组件耦合度，增强了系统的稳定性。

Firstly,we consider that the HaPLEs obtained in our experiments have existed in the cotton bollworm genome for more than 20 years.

由此我们可以得出以下两点推论：第一，piggyBac类似因子在二十年前就已经存在于棉铃虫的基因组中。

The results of theoretical analysis and experiments indicate that in the frequency band of 10 to 3 000 MHz and voltage range of 0.1 to 2 V,the uncertainty is 0.25% to 0.7% and the confidence level is 99.73%. Metrology ; Voltage standard ; Bolovac ; Thin film bolometric bridge with resistance regulation network circuit ; Double thin film bolometer ; RF mount ; Uncertainty evaluation

在近期的技术改造[2]中，我们研制出电阻臂可变的自动平衡电桥，重新研制了双薄膜测热电阻，建立了射频电压自动校准系统，从而使该基准的计量性能有了很大提高，其主要技术指标如下：测量范围为0·1~2·0V；频率范围为10~3 000MHz；不确定度为0·25%~0·7%(k=3)；工作方式为自动测试。2工作原理和构成2.1工作原理射频电压基准是建立在功率替代原理的基础

This is particularly true of 2007's Team Fortress 2, whose stylized look and inherently bombastic tone and gameplay make it a prime candidate for wackier experiments.

特别在2007年的团队要塞 2，其风格独特的外观和内在的夸夸其谈和游戏真正的语气使其成为wackier实验的主要候选人。

The Monte Carlo method is firstly used to simulate random burst of bomblet, the damage radius, amount of bomblet, then draw damaged areas, statistics damage effect, calculate damage efficiency. Lastly calculate the expectation of final damage efficiency of shrapnel through mass random simulation experiments.

文章首先用Monte Carlo法仿真子母弹中子弹的随机落点、于弹毁伤半径和子弹数并绘出子弹毁伤幅员，尔后统计毁伤效果、计算毁伤效能；最后通过大量的随机模拟实验，计算出最终的子母弹的毁伤效能期望。

Experiments on decalcification and activation of osteoinductive ability, comparison between the osteogenesis of demineralized bone matrix in orthotopic and in heterotopic sites, and correlation between immune response to allograft of bone and osteoinductive activity of the graft, were reported in this paper. 1. Syngeneic deminerolized bone matrix and the mixture of DBM with bone ash or acid-soluble protein extracted from demineralization was implanted into muscle pouch of mice, subsequently, the inhibition of DBM osteoinduction by bone ash or acid-soluble protein was demonstrated with histological and by means of alkaline phosphatase assay.

本文对脱钙处理使骨诱导活性表达的作用、脱钙骨基质植入不同部位的成骨表现，以及同种异体骨移植引发的免疫反应与骨诱导活性的内在关系三方面进行了研究：（1）在小鼠肌肉植入同系脱钙骨基质及其与脱钙所去除的骨矿盐和酸溶性蛋白混合物，碱性磷酸酶和组织学检查表明：骨矿盐和酸溶性蛋白具有抑制脱钙骨基质骨诱导活性的作用。

It is of no use learning book knowledge without doing experiments.

学习书本知识而不做实验是没有用的。

A FR borehole of 301 m deep in a fresh and intact rock is used for the experiments.

试验是在一个深301m的新鲜完整的岩石压裂孔中进行的。

The experiments show that in the new diol boric acid and the proportion of different circumstances, different forms of its response, the proportion of three different reaction there.

实验表明，在硼酸与新戊二醇的比例不同的情况下，其反应形式不同，有三种不同比例的反应存在。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。