English translation for "掩蔽作用"
|
- masking action
masking effect
Related Translations:
掩蔽: screen; shelter; cover; mask; blanket; hide; defilade; audio masking; aural masking; ensconce 短语和例子掩蔽目标 cover up the object; keep from sight; 这个土丘可做我们的掩蔽物。 the mound can be used as our scr 电化学掩蔽: electrochemical masking 掩蔽烟雾: bianketing smokeblanketing smoke 声掩蔽: acoustical maskingaudio maskingmasking audiosound masking
- Example Sentences:
| 1. | The noise occultation was significant , and the undertone was the easiest one to be occulted 噪音对信号的掩蔽作用显著,其中低音最易被掩蔽。 | | 2. | At the initial stage of planar technique , b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region , and the good shield effect of sio2 film to b . but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient , the linear slowly - changed distribution of acceptor b in pn junction can not be formed , which could not cater to the requirement of high - reversal - voltage devics . thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed , while the former can lead to relatively large the base - region deviation and abruptly varied region in si , which caused severe decentralization of current amplification parameter , bad thermal stability and high tr ; the latter needed the relatively difficult pack technique , with poor repeatability , high rejection ratio , and poor diffusion quality and productio n efficiency 在平面工艺初期,由于b在硅中的固溶度、扩散系数与n型发射区的磷相匹配, sio _ 2对其又有良好的掩蔽作用,早被选为npn硅平面器件的理想基区扩散源,但b在硅中的固溶度大( 1000时达到5 10 ~ ( 20 ) ,扩散系数小, b在硅中的杂质分布不易形成pn结中杂质的线性缓变分布,导致器件不能满足高反压的要求,随之又出现了硼铝涂层扩散工艺和闭管扩镓工艺,前者会引起较大的基区偏差,杂质在硅内存在突变区域,导致放大系数分散严重,下降时间t _ f值较高,热稳定性差;后者需要难度较大的真空封管技术,工艺重复性差,报废率高,在扩散质量、生产效率诸方面均不能令人满意。 |
- Similar Words:
- "掩蔽阵地" English translation, "掩蔽值" English translation, "掩蔽指数" English translation, "掩蔽中断" English translation, "掩蔽状态" English translation, "掩蔽阈" English translation, "掩蔽阈限" English translation, "掩蔽阈值" English translation, "掩藏" English translation, "掩藏股票" English translation
|
|
|