An optical communication system with both EDFA and B DFRA is introduced.

1、

This photo was entirely different , and yet something about the scenario felt disquietingly familiar.

这张照片和上次那张虽然毫不相干, 但是情形却如此相似,叫人不寒而栗.

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2、

Pero hay que rese? ar que por detr á s est á n saliendo otros grandes jugadores como Jos é Callej � � n.

此外,比如说,马塔现在在巴伦西亚也是一名非常重要的球员.

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3、

Oh shock of white in Depp's hair?

哦,戴普头发上的一道闪电白?

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4、

When Depp was twelve years old, his mother bought him a guitar.

戴普12岁时, 妈妈给他买了一把吉他.

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5、

Under the support of Sino-Euro cooperative project — ANFAS, this dissertation studies thegeneration of DEMs using space-borne InSAR.

在中欧国际合作第五框架中“ANFAS”项目的资助下, 本文开展了基于星载合成孔径雷达干涉测量技术的DEM生成的研究.

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6、

However, the features of topographic information of these DEMs have not been clarified.

然而, 对于这些DEM数据的地形信息容量特征却未能从理论上予以阐明.

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7、

Different spatial scales ( scale and resolution ) DEMs have great difference in the precision of terrain description.

不同空间尺度 ( 比例尺、分辨率 ) 的DEM在地形描述精度上有很大差异.

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8、

These DEMs have been used in many departments of our country.

这些高质量、多尺度的DEM产品已经在我国的经济建设中被广泛的应用.

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9、

Methods Gas chromatography, stationary phase : Chrosorb W AW DMCS 80～100 mesh coated with 10 % DEGS.

方法采用气相色谱法, 聚二乙二醇酯为固定相,涂布浓度为10%,载体为ChromosorbWAWDMCS80～100目的气相柱.

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10、

The image shows field of view of 66 degs . apparent angle.

这张图显示这个镜子的表观视场达到66度.

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11、

Methods: The method employed Gas Chromatography, Stationary Phose : Chrosorb W AW DMCS 80-100 mesh coated with 10 % DEGS.

方法: 采用气相色谱法, DEGS为固定相,涂布浓度为10%,载体为ChromosorbWAWDMCS80-100目的气相柱.

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12、

A novel preparation method to synthesize DEDB by using aluminium phosphotungstate catalyst was developed.

开发了一种用磷钨酸铝催化合成二甘醇二苯甲酸酯(DEDB)的新方法.

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13、

TheHCHs and DDTs in the Liao River originate mainly from the use of pesticides inagriculture.

六六六和滴滴涕是主要污染物,它们主要来源于农药的使用.

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14、

The distributions of DDTs and PCBs is very similiar, but HCHs is different.

DDTs和PCBs有极为相似的分布特征, 而HCHs的分布特征则不尽相同.

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15、

The concentrations of HCHs , DDTs and PCBs were determined by gas chromatography ( GC ).

HCHs 、 DDTs及PCBs含量用GC法测定.

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16、

Organic chlorinated pesticide such as DDTs is one kind of typical global environmental pollutant.

有机氯农药DDTs是全球性环境污染物,对生态环境有严重影响.

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17、

The residual levels of DDTs, HCHs in soil were different with different utilization types.

土壤中DDTs 、 HCHs残留在不同土壤利用方式下有所不同.

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18、

This paper deals with the issurs of cooperation in a DDSS.

本文探讨DDSS的结点合作问题.

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19、

The combined vacuum distillation and melt crystallization technology was used to purify DDHI from artificial musk.

通过减压精馏熔融结晶耦合技术研究提高人造麝香(DDHI)含量的原理和工艺流程.

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20、

Results Sales sum and DDDs of anti-diabetic agents revealed an increasing tendency.

结果抗糖尿病药物的销售金额和用药频度均呈现增长趋势.

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