d*g
2 楼
习惯了就好了
O*d
3 楼
美国的火星探测器，用了两套软件，一套用英制，一套用公制，两套之际的数据交换没
有转换，直接使用。导致降落高度错误，直接在火星大气层中烧毁。
The Mars Climate Orbiter (formerly the Mars Surveyor '98 Orbiter) was a 338
kilogram (750 lb) robotic space probe launched by NASA on December 11, 1998
to study the Martian climate, atmosphere, surface changes and to act as the
communications relay in the Mars Surveyor '98 program, for Mars Polar Lander
. However, on September 23, 1999, communication with the spacecraft was lost
as the spacecraft went into orbital insertion, due to ground based computer
software which produced output in English units of pound-seconds (lbf-s)
instead of the specified metric units of newton-seconds (N-s). The
spacecraft encountered Mars at an improperly low altitude, causing it to
incorrectly enter the upper atmosphere and disintegrate.[1][2]
http://en.wikipedia.org/wiki/Mars_Climate_Orbiter
【在 e********t 的大作中提到】
: 问题是有时是英制有时是公制，他们自己都不嫌烦。
: 正要算一个东西，给出的容器的容量是升，流量单位是sfh。
有转换，直接使用。导致降落高度错误，直接在火星大气层中烧毁。
The Mars Climate Orbiter (formerly the Mars Surveyor '98 Orbiter) was a 338
kilogram (750 lb) robotic space probe launched by NASA on December 11, 1998
to study the Martian climate, atmosphere, surface changes and to act as the
communications relay in the Mars Surveyor '98 program, for Mars Polar Lander
. However, on September 23, 1999, communication with the spacecraft was lost
as the spacecraft went into orbital insertion, due to ground based computer
software which produced output in English units of pound-seconds (lbf-s)
instead of the specified metric units of newton-seconds (N-s). The
spacecraft encountered Mars at an improperly low altitude, causing it to
incorrectly enter the upper atmosphere and disintegrate.[1][2]
http://en.wikipedia.org/wiki/Mars_Climate_Orbiter
【在 e********t 的大作中提到】
: 问题是有时是英制有时是公制，他们自己都不嫌烦。
: 正要算一个东西，给出的容器的容量是升，流量单位是sfh。
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