“variable neutral density filter”的概念、定义、翻译、参考文献-科学参考

单词	variable neutral density filter
释义	variable neutral density filter Encyclopedia 艺术学彩色黑白兼用滤光镜释 variable neutral density filter可变中性密度滤光镜通过转动滤光镜上的调节环，可连续均匀改变其通光能力的滤光镜。又称可调减光镜、POL退光镜（Pol Fader），Ｂ＋W公司称其为双偏振镜（Double Polarizer）。
随便看	Navier-Stokes方程 NAVIGA navigable depth navigable depth survey navigable tunnel navigable waters survey navigating in polar regions navigating in polar waters navigation Navigation Acts navigation agent navigation aided by dynamic model navigation aids navigational datum navigational GNSS receiver navigational instruments navigational lighting aid station navigational lighting aid system navigational object navigational planet navigational satellite navigational sports navigational star navigational star number navigational time scale

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