查询词典 variable compression ratio

A numerical simulation was conducted for a fixed-geometry two-dimensional mixed-compression supersonic inlet with sweepforward high-light and "X" type missile configuration. The results indicate:(1) The total pressure recovery declines with the rise of the free stream Mach number, while the mass flow ratio rises firstly and then declines when its maximum value is obtained at the design point.

针对一种定几何二元倒置&X&型混压式超声速进气道开展了数值仿真研究，结果表明：随着来流马赫数的增加，进气道总压恢复系数下降，而流量系数却先上升，在设计点达到最大值后下降。

The critical ratio correlates more closely with the presence or absence of postoperative symptoms than measures of hematoma volume, and is consistent with the clinical expectation that greater thecal sac compression may result in more severe symptoms.

并且与临床上越严重的囊壁压迫会导致越严重的症状的猜测相一致。

The unirradiated and irradiated samples are analyzed by FTIR, SEM, PGC/MS and TG. At the same time, the gas products after irradiation are analyzed by GC/MS. The relationship of gel fraction of irradiated samples in air with the dose and the compression property and stress relaxation ratio along with the dose are determined.

采用傅立叶红外分析仪、扫描电镜、裂解色谱质谱联用仪以及热失重分析仪等对辐照前后的样品进行了分析，同时使用色质联用仪对辐照后产生的气体进行了分析，并且测定了空气中辐照试样的凝胶含量与吸收剂量的关系以及在室温下试样的压缩性能、应力松弛率与吸收剂量的关系。

On the basis of the statistical characterestics of satellite meteorological infrared cloud charts this paper presents a coding algorithm of "Sub sampling+Modified JPEG+Image enlarging",realizing a compression ratio of 50∶1～100∶1, with the PSNR of 35～40dB and visually unperceptible distortion.

依据GMS卫星红外气象云图的统计特性，提出了一种&亚抽样＋修改的JPEG＋图象放大&的静止图象编码方法，使有失真压缩比在50∶1至100∶1时，恢复图象峰值信噪比在35dB～40dB之间，主观质量无视觉可觉察到的失真。

The large deformation contact non-linearity model of the rubber was constituted, and the relationship between the contact pressure and compression ratio, the change of the Von-Mises stress was found in precompact situation.

以ANSYS软件为工具，建立了橡胶材料的大变形接触非线性模型，得出了预紧状态下O形密封圈的接触应力和压缩率之间的曲线关系，当量应力的变化。

Through measuring the gel time and the unconfined compression stre- ngth of cement-waterglass-clay specimen, this paper, using orthogonal method, analyzes the effect of different water-cement ratio, different admixing quantities of waterglass and different clay content on specimen strength and presents the optimal dispensation formula for two-fluid process of cement-waterglass.

本文通过水泥—水玻璃—粘土试件凝胶时间的测定及无侧限抗压强度测定，用正交方法分析了不同水灰比、不同水玻璃掺量及不同粘土含量对试件强度的影响，提出了水泥—水玻璃双液浆的最优配方，基本解决了旋喷施工时造成的基础瞬时沉降问题，为旅喷注浆的设计与施工提供了依据。

Based on this, this project firstly extensively studies, optimizes and ameliorates the key algorithm in coding -DCT and the movement estimation algorithm, so as to implement fast coding and the high compression ratio.

基于此，本课题首先对编码中的关键算法——DCT变换和运动估计算法进行重点研究、优化和改进，以实现快速的编码和高压缩比。

Aspirated fan/compressor is an integral part of high pressure ratio compression system.

吸附式风扇／压气机是日前国内外高增压比压缩系统的一个重要研究方向。

Experimental results show that this method can obtain a higher compression ratio for color video and achieve higher qualities of decompressed images.

同样，从实验结果中可以看出在彩色空间上采用该方法能进一步地提高图像的压缩比和图像解压后的质量。

An example of related engineering is provided,and this method can be referred by strengthened design for concrete column dissatisfying the active code requirements due to high axial compression ratio.

因此，采用外包CFRP的加固方法可以有效地改善柱子的延性，相对普通混凝土柱，其轴压比限值可以适当提高。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。