多变化的

First it produces the pulse signal by the multivibratorwhich is consisted of 555 timer and send in the detecting coil to form the alternating magnetic field, then it asopts UGN3503 linear half-effect as prode to the magnetic field change into the voltage signal change,after enlargement electric circuit and peak value examination electric circuit,the signal be treated to send into ADC0809 modulus converter change moduluses, then the digital signal after the modulus converter is changed is sent into AT89C51one-chip computers afterwards, after the digital filter, AT89C51one-chip computers afterwards compares the data to the reference voltage and judges whether to have detected the metal and alarm.

这个系统是以AT89C51单片机为核心，首先由555定时器构成多谐振荡器产生脉冲信号送入探测线圈以形成交变磁场，然后经过线性霍尔器件UGN3503将磁场变化转换为电压信号的变化，经过放大电路和峰值检测电路，经数模转换之后输入到单片机中，由单片机对数据进行软件滤波之后，与基准值比较之后，判断是否存在金属和报警显示。

Studies on sequence changes in the early genomes of interspecific F_1 hybrid and amphidiploid in CucumisIn the present study,extensive genomic changes were detected in newly obtained allotetraploid of Cucumis,namely Cucumis hytivus Chen and Kirkbride,by AFLP analysis using 12 pairs of EcoR-I/Mse-I primers.

甜瓜属远缘杂种F_1及人工异源双二倍体早期基因组序列变化研究利用12对Eco RI/Mse I选择性引物，对甜瓜属人工异源双二倍体C.hytivus及其二倍体父母本进行AFLP分析，结果发现多倍体基因组在形成早期发生了广泛的序列变化。

HST is characterized by siliceous limestone-bearing calcareous gravity current sediments, which have the sequences of increased, and incrassate limestone and decreasing and attenuation siliceous rock upwards.

其中孤台层序发育主要受控于相对海平面变化和碳酸盐生产率，台盆层序发育则受构造活动、海平面变化、台缘重力流等因素的综合影响，具多物源特点。

In addition, we find that the spectral index at radio bands varies with time, showing the form of inverse spectrum.

另外我们发现，谱指数随着时间而发生变化，这种变化在5GHz、8GHz和14.5GHz之间多表现为逆谱的形式。

Surface waxes of the pericarp were observed by scanning electron microscopy; the structure and composition of cell wall were studied using light microscopy, transmission electron microscopy and Fourier transform infrared microspectroscopy respectively; the changes of calcium in the cell wall were determined by atomic absorption and the integrity of cell membrane by conductivity meter respectively.

本论文采用扫描电子显微镜研究果实表皮蜡层的变化，用光学显微镜、透射电子显微镜和傅里叶变换红外光谱仪研究果实细胞壁结构和成分的变化，用原子吸收分光光度计测定细胞壁钙离子的变化，用电导率仪检测果实细胞的完整性。同时测定了果实酚类物质含量、多酚氧化酶(EC 1.10.3.1)活性、过氧化物酶(EC 1.11.1.7)活性，并分析了果实硬度、糖和酸含量等品质指标。

The electrochromic performance of the laterally configured ECD was characterized by in-situ UV-Vis spectroscopy. P3MeT ECD shows blue-red reversible changes, and PANI-ECD shows darkgreen-yellowgreen reversible changes.

采用电化学现场紫外-可见光谱法研究了侧面结构固态ECD的电致变色特性， P3MeT-ECD显示出蓝色和红色的可逆变化， PANI-ECD显示出墨绿色和黄绿色的可逆变化，同时采用P3MeT和PANI作变色材料的P3MeT-PANI-ECD可以实现红、蓝、墨绿和草绿多色变化。

In natural vegetation area, where mainly are forest land, the yearly relative humidity and precipitation of spring are the driving forces to the change of NDVI. In brush and shrub area, the change of NDVI is driven by the precipitation and relative humidity of autumn. In grassland and rare tree bush grassland district, the main driving forces are human factors, and the driving mechanism is that farmland and cropping sown area are negative to the change of NDVI, but society factors are positive.

对于以林地为主的自然植被区植被覆盖变化，主要受到春季降水、春季湿度和年均湿度的正驱动，黄淮海地区的北部主要为干旱、半干旱区，因此春季降水偏多会利于植被生长；灌丛和萌生矮林区，秋季降水和秋季湿度对其植被NDVI变化呈负驱动；草原和稀树灌木草原区植被覆盖的变化，耕地面积、作物播种面积对之为负驱动，而其他社会经济因子则为正驱动。

In the aspect of roof conformations, the purlins of roofs and material , Chi-Shan has the characteristic of " Shuang-ying-zai", and its material almost bamboo or mixing bamboo or wood .

在屋顶构造、桁檩配置与材料使用差异方面，旗山具有「双楹仔」配置特色，材料多为竹材或木竹混用，屋顶形式多为硬山式，细部运用红砖组砌产生的变化较多；美浓则坚持单根配置而无「双楹仔」，但中脊处有「双栋梁」的特色，且屋顶多为悬山式，桁檩直接突出山墙面的做法较朴实。

In the aspect of roof conformations, the purlins of roofs and material , Chi-Shan has the characteristic of " Shuang-ying-zai",and its material almost bamboo or mixing bamboo or wood .And its roofs are almost "Ying-sha-shi".The details used bricks to build and made variable.

在屋顶构造、桁檩配置与材料使用差异方面，旗山具有「双楹仔」配置特色，材料多为竹材或木竹混用，屋顶形式多为硬山式，细部运用红砖组砌产生的变化较多；美浓则坚持单根配置而无「双楹仔」，但中脊处有「双栋梁」的特色，且屋顶多为悬山式，桁檩直接突出山墙面的做法较朴实。

A self-containing model for the prediction of the production decline of a water flooded candstone oil reservoir is established by the application of a method of multilayer staged prediction (1) combined with the method of muleiple variables, multiple steps self-checking recurrence prediction (2) based on the analysis of the statistics of changes in the withdrawal rate in a seguence of time.

在分析研究系统的产量变化时间序列统计规律基础上，采用多层递阶预报和多变量多步自校正递推预报器，分别建立了水驱砂岩油田产量递减自适应预报模型。

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。