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HO or H0 is a rail transport modelling scale using a 1:87 scale (3.5 mm to 1 foot). It is the most popular scale of model railway in the world. [1] [2] The rails are spaced 16.5 millimetres (0.650 in) apart for modelling 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge tracks and trains in HO.
Two newer ranges, high-efficiency (HE) 14–35 W, and high-output (HO) 24–80 W, introduced in the 1990s. [2] Panasonic's range of FHL fluorescent tubes in 18W, 27W, and 36W varieties for the Japanese market. Circular fluorescent tubes. Thorn/General Electric 2D fluorescent lamps and other similar lamps from various manufacturers. T6 3 ⁄ 4: ...
Sortable table Abbreviation Meaning h: hr / hours H: histamine or its receptors (if with subscripts) hemagglutinin: H x: history: HA ; H/A hypertonia arterialis headache calcium hydroxyapatite
What does an HO-4 policy cover? A standard HO-4 policy covers 16 specific perils. That means if your personal property is damaged due to one of these events, your insurance company should ...
pseudo-blend = an abbreviation whose extra or omitted letters mean that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words). (a) = acronym, e.g.: SARS – (a) severe acute respiratory syndrome
HO-2 policies are a step up from HO-1 policies, but do not offer as much coverage as an HO-3, which is the most common type of homeowners insurance policy. Like other home insurance policies, HO-2 ...
Holmium is a chemical element; it has symbol Ho and atomic number 67. It is a rare-earth element and the eleventh member of the lanthanide series . It is a relatively soft, silvery, fairly corrosion -resistant and malleable metal.
Unlike the hydroxides of the alkali and alkaline earth hydroxides, it does not dissociate in aqueous solution. Instead, it reacts with water molecules acting as a Lewis acid, releasing protons. B(OH) 3 + H 2 O ⇌ B(OH) − 4 + H + A variety of oxyanions of boron are known, which, in the protonated form, contain hydroxide groups. [19] Tetrahydroxo-