不变

Just think what difficulties we can not surmount ? We can librate and broaden our thinking .

试想我们还有什么不能克服的困难，我们可以借鉴不变的力量，我们可以首先解放了思维而陡然开朗。

The recognition possibility for intra-class target dis tortion version and misrecognition possibility for inter-class target are two m ain performances of an automatic target recognition system.

对同类目标畸变不变的正确识别率与不同类目标分类误识别率是衡量一个自动目标识别系统的两个最重要性能指标。

However in the study of nucleon spin structure,the gluon spin,quark and gluonangular momenta operators seem to have intuitive physical meaning but are not separatelygauge invariant.

但是在核子自旋结构研究中，胶子自旋，夸克和胶子轨道角动量看上去有直观的物理含意，但却不是分别规范不变的。

Through the tests on gas driving water and water driving gas, the flow law of gas and water was real-time observed. Mainly based on the test of water driving gas as an example, the development of molding coal sample and NMR triaxial osmoscope was demonstrated. The experiment process of water driving gas and parameters were demonstrated. NMRI images of molding sample in horizontal cross-section along the driving direction were obtained by NMRI instrument. The results from images were analyzed and compared. Some novel laws were obtained as the following:(1) the leading edge of water driving has inconsistency. This certified the important previous conclusion that the storage of methane mainly was absorbed in inner surface of pore from NMRI technique;(2) the existence of dominant driving pathway was tested and the way kept almost fixed. The pathway is apt to exist in the edge of coal samples where pore and fracture fully develop;(3) the variation of water flow determines the transport velocity of leading edge of water driving and it has lag effect;(4) the effectiveness of the first driving is better than the second driving;and (5) the subsequence of water driving gas are from trunk fractures to branch fractures, then to branch pores.

主要以水驱气NMRI试验为例，详细介绍了核磁共振三轴渗透仪和型煤试件的研制，并重点阐述了水驱气试验过程和相关参数，利用NMRI技术实时观测得到了不同时间沿驱替方向型煤试件水平剖面的NMRI成像图，最后对试验结果进行了比较分析，揭示了一些新的规律认识：(1)水驱替前缘具有不一致性，从NMRI试验角度验证了前人甲烷类气体赋存形式主要以吸附在孔隙内表面为主的重要结论；(2)煤试件存在优势驱替路径，且这种优势路径在驱替过程中基本保持不变，水驱气的优势驱替路径易产生在煤试件边缘，即煤孔隙裂隙发育区；(3)水驱流量变化决定了水驱前缘的运移速度，且对水驱气效果具有滞后效应；(4)水驱气初次驱替效果好于二次驱替效果；(5)水驱替气的顺序为：主要大裂隙—周边裂隙—周边孔隙。

But Scandic's many hotels do not, they can still maintain the original brand will remain unchanged development.

但Scandic旗下的许多旅馆不需要，它们仍可以保持原有的品牌不变，继续发展。

Many studies have demonstrated that the efficiency of synaptic transmission is not stable, but undergoes significant plastic change.

大量的研究表明，突触传递的效率不是固定不变的，而是具有明显的可塑性。

The price will keep unchange for a few years in undeveloped countries.

在不发达国家，物价会连续几年保持不变。

In undeveloping country,the price will remain for several years.

在不发达国家，物价会连续几年保持不变。

In the undeveloping country, the price could be stay still for years.

在不发达国家，物价会连续几年保持不变。

The price of goods will keep on in undeveloping countries.

在不发达国家，物价会连续几年保持不变。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。