Relaxor ferroelectric single crystals, such as pb ( mg1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pmnt ) or pb ( zn1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pznt ), have been reported to exhibit an extremely large piezoelectric constant and excellent electrostrictive properties. such excellent performance makes it fully substitute the traditional piezoelectric ceramics and points to a revolution in ultrasonic transducers, actuators and micro - positioners, making relaxor - based piezocrystals the most promising materials for a broad range of advanced applications. however, it is difficult to grow the high quality single crystals because of the lack of valid thermodynamic data
新型弛豫鐵電單晶鈮鎂酸鉛(簡稱pmnt )或鈮鋅酸鉛(簡稱pznt )是一類新興的功能材料,其在準同型相界附近具有優于傳統壓電陶瓷的較高的壓電常數和電
致伸縮系數,可完全代替傳統的壓電陶瓷作為超聲換能器、
致動器、微位移器等,使其成為鐵電領域的研究熱點,但如何生長出滿足應用要求的單晶材料卻一直是一個困擾的問題。
Scar tissue can cause the artiry ( artery ) to become narrow again
疤痕組織可能導
致動脈再次變窄。
You look sensational.
你看上去真別
致動人哪。
It is worth noting that this virtual screen appears not only in word - recognition, but also in telepathy, telekinesis and the use of paranormal writing and other abilities
值得注意的是這種屏幕效應不限於認字,在思維傳感特異
致動特意書寫等等特異功能實現過程中都有這種屏幕效應。
" to date, there are few similar studies documenting such accelerated atherogenesis in obese children so far, and this innovative project by cuhk clearly indicates that overweight or obesity in children may cause various impairment of endothelial function. " professor woo elaborated. " this may lead to cardiovascular disease or other metabolic diseases when the child grows up
到目前為止,甚少文獻報道有關兒童肥胖可引
致加速性
動脈粥樣硬化病變的報告,而中大這項研究結果的公開發表,則清楚顯示在兒童時期,超重或肥胖可能導
致動脈血管內皮功能發生不同程度的障礙,隨著年齡的增長,更可引起一系列心血管疾病和其他代謝性疾病。
To understand the role of endothelial gap junctions in the process of atherosclerosis we have been investigating the impact of atherogenic factors on the expression of endothelial connexins using animal models and cell culture systems
為了更好的理解內皮縫隙連接在
動脈粥樣硬化癥中的作用,我們已經在
動物模型和體外細胞培養實驗中研究了導
致動脈粥樣硬化的因素對內皮連接素表達的影響。
Correlation of endothelial function of brachial artery and risk factors lead to atherosclerosis in patients with essential hypertension
原發性高血壓患者肱
動脈內皮功能與
致動脈粥樣硬化危險因素的相關性
Hydraulically actuated exhaust valve mechanism
液力
致動排氣閥機構
Electric strikes and frame mounted actuators
裝有撞針和彈體的電氣
致動器
However fickly international capital may behave, the volatility it creates will not be so destabilising as to lead to systemic problems
無論國際資金怎樣波
動流竄,亦不容易使這些市場出現不穩,以
致動搖整個金融體系。
The hardware circuit of the system was designed on the base of circuit theory
應用電路理論設計了
致動器控制系統的硬體電路。
A method and the key points on fabrication of soft actuators based on ion - exchange polymer composites ( ipmc ) was introduced, the actuation principles of the actuators were analyzed
摘要介紹了基於離子聚合物金屬復合結構( ipmc )的柔性
致動器的制備方法和關鍵技術,分析了
致動機理。
Skin is rejuvenated, appears more even toned and refined after 6 weeks
經過六星期的密集使用,膚澤更均勻,皮膚肌理更細致動人。