脈壓窄 的英文怎麼說
中文拼音 [màiyāzhǎi]
脈壓窄
英文
narrow pulse pressure-
The cause that causes cerebral blood - vessel block basically has two kinds : it is a head thrombosis, it is the pathological changes as a result of cerebral blood - vessel itself, often make the film inside tubal antrum coarse because of sclerosis of appearance of cerebral artery congee, be in charge of antrum stricture, below certain condition, if blood pressure is reduced, blood stream is slow, blood sticks consistency heighten, the cruor factor such as plaque, condense inside blood - vessel agglomerate, form cerebral thrombus
引起腦血管阻塞的原因主要有兩種:一是腦血栓形成,它是由於腦血管本身的病變,常因腦動脈粥樣硬化使管腔內膜粗糙,管腔狹窄,在某些條件下,如血壓降低,血流緩慢,血液粘稠度增高,血小板等凝血因子,在血管內凝聚成塊,形成腦血栓。Other mechanisms become involved when hypertension due to an identifiable cause ( eg, catecholamine release from a pheochromocytoma, renin and angiotensin from renal artery stenosis, aldosterone from an adrenal cortical adenoma ) has existed for some time
當因某些易於確定的原因所引起的高血壓存在一段時間后,如嗜鉻細胞瘤釋放的兒茶酚胺、腎動脈狹窄所產生的腎素和血管緊張素、腎上腺皮質腺瘤分泌的醛固酮等,其他機制也會參與高血壓病的形成。The conventional switching power supply usually use a diode rectifier followed by a bulk capacitor to convert ac voltage to dc voltage, resulting in the pulsating waveform of the input ac line current, low power factor ( generally 0. 65 ) and high harmonic line current
傳統的開關電源設備通常採用二極體橋來進行整流和一個較大的電解電容來進行濾波以實現輸入電壓的交直流轉換,導致輸入電流為一個很窄的脈沖波並含有較多的諧波分量,功率因數變低(通常只有0 . 65 ) 。A comparison of the flows with different gate - opening rates shows the causes that opening the gate at a higher rate is favorable to the reduction of cavitation, gate vibration as well as the gate load fluctuation. in addition, a study has been made to show the influence of the high - speed jet flow coming downward from the narrow gate gap on the flow condition in the tunnel downstream to the gate
通過分析比較不同閥門開啟速率對流動特性的影響,闡明了快速開啟閥門不僅有利於減少空化空蝕也有利於減小弧門振動和啟門力的脈動,此外,研究了門楣處狹窄縫隙高速射流對門后流態、壓力脈動和弧門受力等方面的影響。First, this paper research and analyze the feature of signal of pulse doppler radar, and the mathematic model of radar is constructed. the several interference methods that narrow - band suppressing interference, range deception interference and velocity deception interference are discussed. and interference ability is evaluated and simulated
研究和分析脈沖多普勒雷達信號特徵,建立了該種雷達的數學模型,並討論對脈沖多普勒雷達的窄帶噪聲壓制式干擾、距離欺騙干擾、速度欺騙干擾等幾種干擾樣式,並進行干擾性能評估和模擬研究。Radar emits wide pulse to ensure the distance, and gets narrow pulse by using corresponding pulse compression method when receiving. this is pulse compression
脈沖壓縮是指雷達通過發射寬脈沖,保證足夠的最大作用距離,而接收時,採用相應的脈沖壓縮法獲得窄脈沖以提高距離解析度的過程。The measurement of ultra - short pulses is another problem in the field of pulse power technology
高壓窄脈沖的測量是脈沖功率技術領域里的另一重要課題。To shorten charging time and improve charging efficiency, the circuit can change the charging electric current automatically according to real time voltage of the battery, and dispel the polarization phenomenon by narrowing pulse discharge in the whole course
該電路可根據蓄電池端電壓自動改變充電電流大小,並通過全程窄脈沖放電消除了充電過程中的極化現象,縮短了充電時間,提高了充電效率。分享友人