超低排放 ultra-low emission ; ULEV ; ultra-low emissions

超低频 super-low frequency ; VLF ; very low frequency

超低色散 SLD ; ED ; XLD

超低电压 ULV ; CULV ; Ultra-Low Voltage ; ultra low voltage-ULV

燃煤电厂超低排放改造 upgrade coal-burning power plants to achieve ultra-low emissions

超低硫柴油 Ultra-low-sulfur diesel ; ULSD ; ultra low sulfur diesel

超低音 Super bass ; Subwoofer ; LFE ; X-Bass

超低能英雄 Superhero Movie

超低温冰箱 Ultra-low Temperature Freezer ; ultra cold storage freezer ; ultra deep-freeze equipment ; Thermo Scientific Revco ULT