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Ton (ton, tonne, symbol:) t) is a credit of the mass.
In addition, there is the ton used for quantity of various physics except the mass.
The kanji notation "hangs";
It is a unit of yard pound method originally.
It has begun to be used in the latter half in the 15th century.
Besides, tonne of the OFr is the etymology, and, as for the name of the ton, as for it, "a barrel" means tunne of the Old English.
There was it for 1t in about 2,100 weight lb (pound) of the water which was in the barrel containing 252 wine gallon (0.954m) at first.
In the country using metric system including Japan widely, it points at (metric ton) that it was defined kilogram (kg) as the used ton by a standard for a unit of the mass now.
One is defined if equal to 1,000kg (one mega gram).
Because gram ton, metric system are French origin because is ton based on a gram, I say the French tonnage.
The history of dates back until 1879.
When I used a base unit (a kilogram is accepted as a base unit of the metric system formally after 1901) of the mass of the metric system of the gram and displayed big mass after 18 end of the century metric system establishment, there was not a method to transcribe kilogram size more than it because there was only a limited prefix to millimeters (m) which expressed a one-1000th from kilometer (k) which expressed 1,000 times in those days.
In addition, I adopted use of "t" as a sign to express ton as the thing which expressed mass 1,000kg in international weights and measures committee at the time of 1879 again because I was easy to invite confusion with a prefix with a kilometer kilogram in a meaning of 1,000 times of the kilogram double.
was accepted for a unit of the mass in the metric system formally by this.
is an SI combination credit by the present (the unit that it is used together with SI, but do not belong to SI).
On the other hand, a mega gram (Mg) is born for a unit to express 1,000 times of the kilogram because I become it in 1960 when international unit system (SI) was born aiming at the unit unification of the various places of the metric system, and a big prefix called mega (M) expressing 1,000,000 times was added.
Mega gram (Mg) and (t) are credits to express the same mass and recommend what I give priority to the mega gram of an SI unit with prefix in the international unit system and use, but I am wide, and I am recognized and reach it today because recognized combination under the present conditions has been used for a long time historically.
リンク集
いい白髪染め、見つけたよ。利尻ヘアカラートリートメント
http://homepage3.nifty.com/milktea/rkhaircolor/
昆布の栄養入ってます、利尻ヘアカラートリートメント。
http://xn--kcr68v.xn--ccks1gaa5g1c1ck6g8dc.net/
スキンケアトライアルセットが好評、草花木果の。
http://xn--jh1a2l.xn--4pvzj.com
b.glen(ビーグレン)ってビタミンCがお肌の奥まで浸透します。
http://park2.wakwak.com/~toku1/bglen.html
正直、ゴルフ会員権の相場とかあまり分からないので信頼できる会社に相談したい。
http://www.aaa-golfweb.co.jp/
美白効果・しわ対策に･･･ビーグレン。
http://www.squiro.com/
品川近視クリニックはレーシックに関する賞を多く受賞しているから安心。
http://www.sina33.com/
bglenはbとgの間にドット(.)が入るのが正式名です。でも美肌効果には影響ありません。
http://park2.wakwak.com/~toku1/bsiwa.html
保湿力と保水力さらに浸透力が桁違いです、アテニア化粧品の商品は。
http://park2.wakwak.com/~toku1/attenir/
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