查询词典 supersonic

The metallurgist has recently found a metal skin for missiles and supersonic planes,one that will retain its strength at the high temperature caused by air friction.

冶金学家最近发明了一种用于导弹和超音速飞机的金属外壳，这种外壳在大气摩擦引起的高温下仍然能保持其强度。

The supersonic extraction process of flavonoids from orange peel was studied in this article.

研究以乙醇为溶剂超声波辅助提取柑橘皮黄酮的工艺。

The allergy quarantine with avian bacillustuberculosis PPD indicated that there is significantly difference between the pVAXl-hsp65,pVAX1-hsp65-10 groups and supersonic antigen of MAP group (P＜0.01).This indicates that the Hsp65 andHsp 10 does not interfere with detection of Paratuberculosis allergy.

禽结核杆菌PPD皮试结果显示，pVAX1-hsp65和pVAX1-hsp65-10免疫组与副结核分枝杆菌超声抗原免疫组差异极显著(P＜0.01)，表明Hsp65和Hsp10不干扰变态反应检测。

The results show that the discharge and cooling stages of sparkjet were simulated by computational method. The instance energy input can produce the condition of high pressure and temperature in the actuator, which induce the forming of synthetic jet. With the increment of the input energy, the velocity of the synthetic jet could be increased to the supersonic state. Under the periodic energy input, the distribution of the sparkjet velocity on the nozzle is non-sinusoidal. And the discharge velocity of jet is much larger than the suction velocity of the flow from environment.

计算结果表明：采用本文的计算方法可以模拟出火花型激励器喷射、吸入的工作阶段；电火花瞬间能量的输入产生了腔体内的高温、高压环境，从而诱发合成射流的形成；当激励能量增加，激励器产生的合成射流速度增加，可达到超声速状态；周期性激励下，火花型合成喷喷口处的轴向平均速度随时间不是正弦分布，且喷射过程的最大速度要远远大于吸收过程的最大速度。

In simultaneously uses the mirror supersonic to do guides the good pintle puncture,may diagnose the pathological change nature.

同时利用内镜超声作引导行细针穿刺活检，可确诊病变的性质。

The time averaged velocities in fluid flow can be measured simply and conveniently by investigating the effect of the pitot tube in supersonic flow.

总压管提供了一种简便快捷的测量流体平均流场的方法，分析其在超音速测量中的影响具有重要意义。

Objective To extract ursolic acid and oleanolic acid from Rhododendron simsii Planch flowers by supersonic technology and develop a RP-HPLC method to determine the content of ursolic acid and oleanolic acid.

目的 结合超声技术提取不同花色映山红花中熊果酸和齐墩果酸，建立RP-HPLC法测定其含量。

The optimum conditions for extraction was proved practicable by condition filtration and orthogonal design with supersonic wave method .The results showed that the optimum conditions for extraction to ultrasonic method is : methanol (φ=40,20ml),and 15℃ for 30 min ,this paper has determined nicotine contents that is 23.50mg/g at absorption peak (λ=262nm) by HPLC with an eluent consisting of methanol –potass Phosphate alleciate (pH=3) with the recovery and coefficient of variation are 101.52% and 0.91%.

通过超声波提取方法进行条件筛选和正交化实验，确定了烟草中尼古丁的最佳提取条件，结果表明，超声波最佳条件是：甲醇浓度40%，固液比1：20，提取时间30 分钟，超声温度15℃，用高效液相色谱方法在波长262nm 处测定尼古丁的含量，流动相组成为甲醇：磷酸二氢钾缓冲溶液=10：90，测得烟草中尼古丁的含量为23.50 mg/g，平均回收率为101.52%，相对偏差为0.91%。

March 1960 AEDC report on wind tunnel tests of Pye Wacket lenticular configurations at supersonic speeds.

960年3月a edc报告对风洞试验的p yew acket透镜状配置在超音速的速度。

Numerical results demonstrated that there are three kinds of the instability for the under-expanded supersonic jets according to their shock cell structure patterns:(1) the regular reflection shock cell with a single shear layer,(2) the Mach reflection shock cell with two shear layers and (3) the curved Mach stem with a relatively high expansion ratio.

计算结果表明欠膨胀超声速射流的失稳机制根据射流激波结构的特征可分为3种失稳模式：具有规则反射激波结构和单一剪切层特征的射流不稳定性；带有马赫反射激波结构和双剪切层特征的射流不稳定性；具有弯曲马赫杆和高度欠膨胀射流的不稳定性。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。