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The metre–tonne–second or MTS system of units is a system of physical units. It was invented in France, hence the unit names ''sthène'' and ''pièze'', and became its legal system between 1919 and 1961 ("décret" 5 May 1961, "Journal Officiel"). It was adopted by the Soviet Union in 1933 and abolished there in 1955. It was a metric and coherent system of units, much as SI and the centimetre-gram-second system (CGS), but with larger units for industrial use, whereas the CGS system was regarded as suitable for laboratory use only. == Units == The base units of the MTS system are as follows: * length: metre * volume: cubic metre or litre : 1 m3 ≡ 1 kL * mass: tonne, : 1 t = 103 kg = 1 Mg * time: second * force: sthène, : 1 sn = 1 t·m/s2 = 103 N = 1 kN * energy: sthene-metre = kilojoule, : 1 sn·m = 1 t·m2/s2 = 103 J = 1 kJ * power: sthene-metre per second = kilowatt, : 1 sn·m/s = 1 t·m2/s3 = 103 W = 1 kW * pressure: pièze, : 1 pz = 1 t/m·s2 = 103 Pa = 1 kPa = 1 centibar (cbar) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Metre–tonne–second system of units」の詳細全文を読む スポンサード リンク
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