The Chinese Type 69 and Type 79 tanks were developments of the Type 59, which in turn was a copy of the Soviet T-54/55 series of tanks. Their lineage can be seen through the distinct gap between the first and second roadwheels. The original 100 mm smoothbore gun on the Type 59 was replaced with a 100 mm rifled version. Other improvements included a new engine, ballistic computers, and laser rangefinders. The more advanced Type 79 was equipped with a 105 mm rifled gun, also seen on the later Type 88. The metre, symbol: m, is the basic unit of distance (or of length, in the parlance of the physical sciences) in the International System of Units. ... The word ton or tonne is derived from the Old English tunne, and ultimately from the Old French tonne, and referred originally to a large cask with a capacity of 252 wine gallons, which holds approximately 2100 pounds of water. ... A hoplite wearing a helmet, a breastplate and greaves (and nothing else). ... The horsepower (hp) is the name of several non-metric units of power. ... The Chinese Type 59 Main Battle Tank is a copy of the ubiquitous Russian T-55/54 medium tank. ... The T-54 and T-55 main battle tanks were the Soviet Unions replacements for the World War II era T-34 tank. ... Smoothbore refers to a firearm which does not have a rifled barrel. ... This article is about firearms and similar devices. ... Rifling is the means by which a firearm gyroscopically stabilizes a projectile. ...

References

"Type 69 Main Battle Tank." FAS Military Analysis Network. Accessed on 1 June 2005. June 1 is the 152nd day of the year in the Gregorian calendar (153rd in leap years), with 213 days remaining. ... 2005 is a common year starting on Saturday of the Gregorian calendar and is the current year. ...