单级

To build a large vocabulary lipreading system based on single visual channel,an unitary U-LDCT-KL two-level feature extraction method is presented in this paper.It is based on lip region partition DCT coefficients to be gotten rid off the overlap of those local coefficients by KL.

在建立视觉单通道的大词汇量唇读系统中，提出了归一化的U-LDCT-KL两级唇读特征提取方法，即针对唇区分块的DCT系数进行二级KL（Karhunen-Loeve Transform）去局域参数的交叠。

In the design of W band double-balanced mixer, a novel structure using Magic-T and two baluns, which all realized by ratrace, is proposed with no crossing of transmission line.

在W频段双平衡混频器的设计中，本文提出由混合环构成的魔T与巴伦级连而成的功率混合电路，这种新颖的电路结构使整个电路单平面化，避免了任何跳线。

The measurement circuit is carried out on a FPGA, as a result, the TIU has advantages of slight interference, low power consumption, small capacity and large dynamic range. Every components used in the unit have aerospace level alternative.

单元的测时电路在单片FPGA中完成，因此具有受外界干扰小，功耗低，体积小，动态范围大等优点；单元选用的元器件具有航天级产品。

It is found that Kerr effect has a great influence on the non-classical photon statistics in the case of large single-photon detuning in the system.

结果表明：当单光子失谐量较大时，Kerr效应对光场与级联三能级原子非共振相互作用系统的光子非经典统计性质有较大影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。