不为0，为0的是重量，This，is，weightless，，here，your，weight，is，double,这里是零重量，这里是二倍重量,这里是正常重量，这里是二倍重量,然后又是新的一轮,自由落体。
g here your weight is normal, here your weight roughly doubles and you go into another free-fall period and the cycle from here to here is about 90 seconds.
在英国，棕色轿车的销售量是黑色轿车销售量的约二倍。
About twice as many brown cars are sold as black cars in Britain.
同一份量的碳，所需要的氧的分量却是一氧化碳的二倍。
For the same amount of carbon, there is twice as much oxygen as in carbon monoxide.
用增量值编程时，以径向实际位移量的二倍值表示，并附上方向符号(正向可以省略)。
When programming with incremental value, in radial direction, the displacement of two times the actual value, and the enclosed said direction signs (omit the positive).
美国“干净的城市”计划，在2007年已省了三亿七千五百万加仑的汽油，所节省的量是2006年的二倍。
US program "Clean Cities" has saved 375 million gallons of gas in 2007, twice the savings reported in 2006.
二倍频的量已经被证实和胶原蛋白的量有正相关。
SHG intensity has been shown to correlate with the amount of collagen.
二倍频的量已经被证实和胶原蛋白的量有正相关。
SHG intensity has been shown to correlate with the amount of collagen.
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