film shield 中文意思是什麼
film shield
解釋
護片板-
That private car, among the luxurious few in hong kong, was in fact borrowed by one of the investigators from a relative. dark tinted film covered the windows to shield godber from cameras. two other cars were rented to provide extra cover and to act as escorts during the transfer
為掩人耳目，他們棄用了政府車輛，徵用了一部事前由一名調查員向親友商借，全港僅有數輛的名貴房車，而為免葛柏被記者攝入鏡頭，更在車窗上貼上玻璃紙另外，還租借了兩輛汽車作護航。 -
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
在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。 -
Shield film can greatly reduce the potential for injuries and property damage from flying and falling glass during such occurrences
盾膜可有效地防止此類爆炸中，飛行的玻璃碎片產生的傷害。 -
The fabrication of shield coating used on large storage facilities in this paper is mainly applied to the petroleum storage tanks. in the preparation of conducting electrostatic coating, e20 and e44 exposy are used as film forming material and carbon nano tubes is mixed into as conducting functional component
本文制備的大型儲油設施安全防護塗層是以大型儲備油罐為主要使用目標，以e20和e44環氧樹脂作為塗層主要成膜材料，以碳納米管作為塗層主要導電功能體而製成的。
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