Two typical sintering technologies of PCD are also introduced.

介绍了两种人造金刚石聚晶典型烧结工艺。

The PCD of starchy endosperm cells in wheat was a special form of PCD.

因此小麦淀粉胚乳细胞的PCD是一种特殊形式的PCD。

The Wheel PCD is the diameter of the studs from the centre of the wheel.

汽车轮毂PCD值是指螺栓安装孔的中心连接而成的截面圆的直径。

The brazing of PCD tools requires exact heating temperature and soaking time.

聚晶金刚石复合片刀具的焊接，严格要求加热温度和时间的参数。

PCD material is characterized by high hardness, wear resistance and high cost.

PCD材料具有高硬度、高耐磨性以及刀具刃磨成本较高等特点。

PCD is important for the formation of structure and differentiation of plants.

植物发育过程中的PCD对植物自身形态建成和组织分化有重要意义。

The cutting model of PCD cutting tool was analyzed and some experiments were done.

在分析PCD刀具切削模型的基础上进行了切削试验。

PCD tool is the best tool material for precise machining from points of the cutting force view.

从切削力这一因素来看，PCD是精加工颗粒增强铝复合材料的最佳刀具材料。

Objective:To evaluate the stability of cervical spine after PCD (percutaneous cervical diskectomy).

目的：探讨经皮穿刺颈椎间盘切除术（PCD）对颈椎稳定性的影响。

The polycrystalline diamond (PCD) compact is composed of polycrystalline diamond layer and hard alloy layer.

PCD复合片由聚晶金刚石层和硬质合金层组成。

When the gene is inactivated, the plant can no longer regulate PCD, leading to cell death throughout the leaf and plant.

当这个基因被失活时，植物就不能再调节程序性细胞死亡过程，从而导致整个叶子和植物的死亡。

Programmed cell death (PCD) is a cell death process that is a normal part of the life cycle of a multicellular organism.

细胞程序性死亡是多细胞有机体生命周期中正常的组成部分，细胞程序性死亡过程的存在对生物体是一种保护机制。

Objective to evaluate percutaneous cervical diskectomy (PCD) and chemonucleolysis (CNL) in treating cervical disk herniation.

目的评价经皮颈椎间盘切除术(PCD)和化学溶核(CNL)治疗颈椎间盘突出症的价值。

Some features of PCD in plants, including the changes in cell morphology and DNA degradation, are similar to those in animals.

植物的PCD和动物的PCD有许多共性，包括细胞形态和DNA降解等变化。

However, PCD induced by m-AMSA was extensive and the number of PCD positive cells increased with prolongation of exposure time.

但安吖啶诱导两株细胞程序化死亡的细胞数都随时间延长而逐渐增加。

As a result, the influence of PCD of cobalt binder on the thermal stability is greater than that of the starting grain size of diamond.

结果表明：粘结剂钴含量要比金刚石原始粒度对复合片热稳定性的影响大。

Ultrastructural features of nucleus degradation during programmed cell death (PCD) of starchy endosperm cells in rice ( Oryza sativa L.

淀粉胚乳细胞编程性死亡过程中核的变化特征。

The variation regularities of cutting forces of the PCD tools with different geometric parameters in turning aluminum alloy are studied.

研究了不同几何参数的PCD刀具车削铝合金时切削力的变化规律。

Autophagy is commonly observed in metazoan organisms during programmed cell death (PCD), but its function in dying cells has been unclear.

在后生动物有机体的细胞程序性死亡(PCD)中可以普遍观察到自噬现象。但它在垂死细胞的功能作用还不清楚。

Programmed cell death (PCD) is a natural cell death controlled by certain genes, occurring commonly at certain stages of plant development.

细胞程序性死亡是在植物体的一定发育阶段普遍发生的受特定基因调控的自然的细胞死亡过程。

Programmed cell death (PCD) is an active and gene-regulated process which plays an important role in normal growth and development of plants.

细胞程序性死亡(PCD)是一种由基因控制的、主动的细胞死亡过程，它对植物正常生长发育起重要作用。

A particle charge detector (PCD) was applied to determine the end point of colloidal titration for cationic starch having small charge density.

应用粒子电荷测定仪(PCD)的流动电位变化判定阳离子淀粉胶体滴定的终点。

This paper presents a study of cutting surface roughness for different PCD tools having various tool geometries during machining Aluminum alloy.

文中研究了PCD刀具在不同的刀具几何参数下车削铝合金的加工表面粗糙度。

The influences of flank surface and edge quality of PCD cutting tool on cutting surface quality when machining nonferrous metal are studied in this paper.

本文主要研究PCD刀具加工有色金属时刃口及后刀面的刃磨质量对切削表面质量的影响。

As the material of grinding wheel dresser, the dressing Performance of PCD is near to that of a single crystal diamond, but itS price is relatively lower.

作为砂轮修整器的材料，PCD在性能上接近单晶金刚石，而在价格上却相对便宜得多。

Research results indicate that there is an optimum grinding speed range during grinding PCD in which the lowest cost and higher efficiency can be realized.

研究结果表明，磨削pcd材料时存在一个最佳磨削速度范围，在此范围内磨削成本最低、磨削效率较高。

Analyses the quality and characteristic of the savageness diamond, synthetic diamond and PCD, compares the applications in the present exactitude machining.

对天然金刚石、人造金刚石单晶及人造金刚石聚晶的性质、特点以及在现代精密加工中的应用作了比较。

Therefore, this paper focused on the prediction of reservoirs by using seismic inversion and the prognostication of formation pressure by applying PCD method.

为此，本研究利用地震反演方法对本区的储层发育情况进行了预测，并利用PCD压力预测方法对地层压力系数进行了预测。