查询词典 pitch-blackness

By analysing and calculating the variations in distribution of axis direction contact force and contact pressure on screw thread, the influence of errors of pitch and taper of casing screw threads to the properties of resisting pull and sealing liquid and gas are studied. Based on the result obtained through analysis, a reasonable tolerance distribution for pitch and taper is proposed.

最后，本文通过分析计算内外螺纹不同的螺距、锥度参数配合时，轴向载荷及接触压力在螺纹上分布的变化，研究了套管螺纹的螺距、锥度参数误差对套管螺纹接头的拉伸和密封性能的影响，并依据分析结果提出了二参数公差带的合理分布。

Design of pitch curve of a VCD—NGPM with circular planetary gear has been done, and a universal program for designing pitch curve is drawn up.

1首次提出变中心距非圆行星齿轮机构的概念，给出其节曲线设计步骤和相应的计算公式。

Since the infant CPB needn't high flow rate, the 12mm pitch wheel with higher anti-resistance ability is more suitable in this study;(3) The axial flow pump with 12mm pitch wheel was used in animal experiment.

考虑幼婴儿体外循环中对流量的要求不高，因此抗阻能力较高的螺距12mm的叶轮更适合本设计的要求；（3）在动物实验中选用12mm螺距的叶轮安装在轴流泵中。

He's pretty special, I mean if he didn't throw that wild pitch they may not score....err..but he was great, I mean pitch count...arrrh...doesn't come any better than that, that's for sure.

P% i 他太特别了…我是说…如果他那时没有投出暴投，他们也许就不会得分…太棒了。

He was in control the whole night, surrendering runs in the 7th when, as he struck out Wright on a pitch in the dirt, the wild pitch got away from Wang, allowing Wright to take first.

他整晚都把情况控制在手中。小王在第7局丢了一分，当时，他用一个挖地瓜的球三振掉Wright，但是，球有点失控而让Wright跑上一垒。

Baseball To advance safely to during the delivery of a pitch, without the aid of a base hit, walk, passed ball, or wild pitch.

偷垒：在一次投球后，没有击球员、游击手、传球手或外野手的帮助而安全跑入

Coal tar pitch is a coal tar initial fractionation, the boiling point greater than 360 ℃ residues; wood tar wood tar pitch is the residue after distillation material.

煤焦油沥青是煤焦油初步分馏后，沸点大于360℃的残留物；木焦油沥青是木焦油蒸馏后的残留物。

Creosote is the name used for a variety of products: wood creosote, coal tar creosote, coal tar, coal tar pitch, and coal tar pitch volatiles.

焦油的名字被用于各种产品：木焦油，煤焦油焦油，煤焦油，煤焦油沥青，煤焦油沥青挥发物。

The computational complexity has been reduced about 5 times over against the original one. Moreover, the interpolation and quantization processing of CW is more reasonable; 2. A secondary power normalization algorithm is proposed in this dissertation. This normalization algorithm ensures that the energy sum of SEW and REW is 1. So, the energy ratio of SEW and REW can be achieved only by using SEW energy. This ratio is applied in REW quantization and CW composition; 3. For more efficient quantization for Slowly Evolving Waveform magnitude, Rapidly Evolving Waveform magnitude and power parameters, firstly, by applying the Equivalent Rectangular Bandwidth theory, classifiable multi-codebooks method, analysis-by-synthesis approach and so on, a predictive AbS multi-codebooks SEW magnitude quantization scheme is proposed. In the scheme, pitch information is exploited to determine which codebook is searched; secondly, for REW magnitude quantization, this dissertation proposed a DCT-matrix multi-codebooks quantization scheme. The classification in muti-codebooks is based on pitch and quantized SEW power. The multi-codebooks structure may offer more the information in quantization and solve the problem of the bit requirement limits in quantization by consuming some extra storage space; Furthermore, for the switch quantization of CW gain, a new classified parameter is proposed.

本文的主要贡献体现为如下几方面：一、为了减少WI模型的计算复杂度，提出了基于快速傅立叶变换、三次B样条插值和周期延拓技术的特征波形(Characteristic Waveform，CW)表示和对齐的快速算法，与原方法相比，计算量下降到原方法的1/5，同时也使得CW在插值和量化时更合理；二、为了严格保证SEW与REW的能量和为1，提出了一种特征波形的二次功率归一化算法，仅需要SEW能量就可以算出二者的能量比，并可应用到后续的REW的分类量化和CW合成中；三、为了对慢渐变波形(Slowly Evolving Waveform，SEW)幅度、快渐变波形(Rapidly Evolving Waveform，REW)幅度和特征波形功率进行有效量化，本文首先采用临界频带理论、分析合成技术、感觉加权技术以及预测式矢量量化技术，提出了一种基于基音周期分类的SEW分析合成预测式多码书量化方法；其次，本文根据基音和量化后SEW的功率信息对REW幅度进行分类，提出了一种基于离散余弦变换的REW矩阵多码书量化方法。

The carbon foam were prepared by self-bubbling at high pressure from AR pitch added sodium dodecyl benzene sulfonate and Span-40, respectively. The bulk density, pore rate, compressive strength, thermal conductivity at room temperature and crystallitic parameters of carbon foam were measured. The rheological properties of AR pitch and pore structure of carbon foam were investigated.

以十二烷基苯磺酸钠和Span-40表面活性剂为添加剂，AR沥青为原料，制备炭素泡沫材料，测定了材料的体积密度、显气孔率、压缩强度、常温热导率以及微晶结构参数，研究了添加表面活性剂后AR沥青的流变性能和炭素泡沫材料孔胞结构的变化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。