English ⇄ Albanian Amharic Arabic Armenian Assamese Azerbaijani Basque Bengali Bosnian Bulgarian Catalan Chinese Chinese Taiwan Chinese simplified Croatian Czech Danish Dutch Estonian Filipino Finnish French Galician Georgian German Greek Gujarati Hausa Hebrew Hindi Hungarian Icelandic Igbo Indonesian Irish Italian Japanese Kannada Khmer Kinyarwanda Konkani Korean Kyrgyz Latvian Lithuanian Luxembourgish Macedonian Malayalam Maltese Maori Marathi Nepali Norwegian Norwegian Bokmål Odia Persian Polish Portuguese Punjabi Quechuan Romanian Russian Serbian Serbian Latin Sesotho sa leboa Sinhala Slovak Slovene Spanish Swahili Swedish Tamil Tatar Telugu Thai Tswana Turkish Turkmen Ukrainian Urdu Uzbek Vietnamese Welsh Wolof Xhosa Yoruba Zulu

key filter
avia.	键路火花消除器; 键噪滤波器
commun.	电键线路滤波器

key filter: 4 phrases in 3 subjects

Aviation	1
Technology	1
Telecommunications	2