The advanced small gasturbines feature small mass flow ratio, short vanes and blades with low aspect, high second flow and blade tip leakage losses, and low efficiency.
先进的小发动机涡轮的流量小,叶片短,展弦比低,二次损失及叶尖漏泄损失大,效率低,温度高冷效差。
The pneumatic-hydraulic composite transmission system with two-step output liquid pressure automatic switchover from low pressure and mass flow to high pressure and little flow.
具有双级液体压力输出的气—液复合传动系统,能实现低压大流量到高压小流量的自动切换。
The blood flow frequency imaging of peritrophoblastic artery flowing was searching by pulse Doppler, it was high extending flow and low resistance.
用彩色能量图显示低速血流,用脉冲多普勒寻找高舒张期低阻力滋养动脉血流频谱。
Check the solenoid valve products with a variety of refrigerator current value, high flow and low flow, in order to determine the product 's fine.
说明:检查多种冰箱用电磁阀门产品的电流值,高压流量及低压流量,以便判断产品的优良。
Just as the water level in accordance with its poor flow of current is caused by the potential flow in areas with high and low potential areas.
就如同水依其水位差而流动,电流的造成就是由电位高的地方流向电位低的地方。
In the oil cooling system of a high performance helicopter, the low mass flow, high rotating speed and small size axial flow fan design is a key task.
小流量、高转速、小尺寸轴流风扇的设计是高性能直升机滑油冷却系统的关键技术之一。
The water quality was more stable in high flow period and more changeable in low flow.
丰水期水质比较稳定,枯水期水质变化相对比较大。
In the second phase group it was in a state of normal systolic flow velocity, low diastolic flow velocity and high renal vascular resistance.
第二组处于收缩期正常流速,舒张末期低流速,肾血管高阻状态。
Results: Thrombi of packed platelets and fibrin were observed to form at low flow rates, while only a monolayer of spread platelets was seen at high flow rates.
结果:血栓的便携血小板和纤维蛋白形成,观察在低流量,而只有单层的蔓延血小板被视为在高流速。
Used microscopic flow experimental apparatus to study condensate oil micro-flow characteristics under respectively high, medium and low displacement velocity.
利用可视化微观渗流实验装置进行了高、中、低不同速度下凝析油微观渗流特征实验研究。
Coriolis quality flow meter (CMF) which categorized in direct-style quality flow meter utilizes Coriolis principle to realize its high degree of accuracy and low degree of mechanical loss.
科里奥利质量流量计(CMF)是利用科里奥利原理实现的一种高精度、低机械损耗的直接式质量流量计,变送器是CMF重要的组成部分。
Even if the sampling rate is high, the method makes part of a low blood flow signal clearly visible in frequency domain, and more detailed blood flow sonogram can be obtained.
该方法可以在高采样频率条件下实现低流速血流信号的局部可视化,同时由于局部范围内采样分辨率的提高,将获得更细致的血流声谱图。
The aspiration air flowing direction is basically same with the direction of the valve seat. The flow coefficient of the air valve is high, and the flow loss is low.
吸气气流流动方向与阀座方向基本一致,气阀流量系数高,流动损失小;
It is shown that the flow instability with high frequency belongs to acoustic oscillation and the flow instability with low frequency is density wave instability.
高频脉动属于声波型脉动,低频脉动属于密度波型脉动。
It is shown that the flow instability with high frequency belongs to acoustic oscillation and the flow instability with low frequency is density wave instability.
高频脉动属于声波型脉动,低频脉动属于密度波型脉动。
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