Affected by electromagnetism and structure, the rotor shaft of big length to diameter ratio high power density asynchronous motor shows low intensity and bad rigidity.
大长径比高功率密度电机受电磁及结构因素的影响，转轴的强度低，钢度差。
But that results the high void ratio, low density, hardness, and quality bulk material.
但是采用此方法所制得的块体材料致密度小，孔隙率高，硬度值较低，性能较差。
The invention has the advantages that the heterojunction device acquired by the method has the characteristics of good rectification ratio and high current density.
本发明的有益效果是：该方法获得的异质结器件具有很好的整流比、高电流密度的特点。
The erasable optical disk with high recording density, high stability, high data transfer rate, high carrier-noise ratio and low error rate arc the main points in the research and development.
当前的研究与开发的重点是具有高记录密度，数据传输速率快、稳定性好、载噪比大和误码率低的可擦型光盘存储材料。
Honeycomb sandwich plate has many advantages such as low density, high strength ratio and high stiffness ratio.
蜂窝夹层板具有低密度、高比强度、高比刚度以及可设计性等优点，在航空航天领域里广泛应用。
When the dry density is relatively high, this dense specimen shows shear dilatation characteristics, and the effective principal stress ratio tends to be strain softening phenomenon.
干密度值较高时，土样处于密实状态，表现出剪胀特性，有效主应力比-应变曲线近于应变软化型；
Weight ratio of the density of high-volume, higher ambient temperature range of tolerance and are able to withstand the vibration of high intensity.
体积重量比密度高，更高的耐受环境温度范围，并且能经受高强度的振动。
By giving an example which USES GAL to develop a binary ratio multiplier, the author explains in detail the method of using GAL chip to develop a high-density integrated circuit.
通过给出一个用通用阵列逻辑芯片GAL开发二进制比例乘法器的事例，详细介绍了用GAL芯片开发高集成度逻辑电路的方法。
The ratio of high density lipoprotein and low density lipoprotein is the important factor in predicting of stroke.
尤其是高密度脂蛋白胆固醇，低密度脂蛋白胆固醇是预测脑卒中发病的重要的易患因子。
With the high density heat insulator and adopt high pressure foaming machine to irrigate, the showcase performs excellent heat preservation effect and high energy efficiency ratio.
高密度保温材料，采用高压发泡设备进行浇灌，保温效果优异，能效比高。
Having entered into the later period of high water cut in Gaotaizi reservoir, pressure difference between blocks is bigger, oil-to-water-well ratio is higher and pattern density is lower.
针对萨中高台子油层进入高含水后期，区块间压力差异较大，油水井数比偏高，井网密度低，计算了合理注采井数比及井网密度，评价了目前的注采压力系统。
Having entered into the later period of high water cut in Gaotaizi reservoir, pressure difference between blocks is bigger, oil-to-water-well ratio is higher and pattern density is lower.
针对萨中高台子油层进入高含水后期，区块间压力差异较大，油水井数比偏高，井网密度低，计算了合理注采井数比及井网密度，评价了目前的注采压力系统。
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