“气球”宇宙飞船使用水力向太空推进，成本大约是普通宇宙飞船的三十分之一。
The "Balloon" spaceship uses water to push it through space and costs about one-thirtieth of a normal spaceship.
一天大约是一个月的三十分之一。
一弧秒的移动是一毫米的三十分之一。
One second of arc movement is one thirtieth of a millimetre.
一弧秒的移动是一毫米的三十分之一。
此属性的默认值等于图像的数量乘以三十分之一。
The default value of this property is equal to the number of images multiplied by 1/30th of a second.
往往，农民所得到的土地补偿费不及土地出让费的十分之一，一般仅有三十分之一左右。
The compensation given to farmers was usually less than ten percent, on average around thirty percent, of the land transfer charges.
总之，地热能大约只拿到了联邦总资助的三十分之一，资助包括：研究拨款、对等资金、税收减免，联邦的资助主要都用于风能和太阳能。
Overall, geothermal has received around a thirtieth of the federal support-in terms of research grants, matching funds and tax credits-that has been handed out to wind and solar.
木星的光照程度只有地球的三十分之一，土星为八十分之一，天王星甚至达到三百分之一，而离太阳最远的那些星体，如1845年发现的海王星，光照程度只有地球的九百分之一。
On Saturn, eighty times. On Uranus, even three hundred times; and upon the last of the planets, Neptune, discovered in 1845, light is nine hundred times more feeble than upon our globe.
木星的光照程度只有地球的三十分之一，土星为八十分之一，天王星甚至达到三百分之一，而离太阳最远的那些星体，如1845年发现的海王星，光照程度只有地球的九百分之一。
On Saturn, eighty times. On Uranus, even three hundred times; and upon the last of the planets, Neptune, discovered in 1845, light is nine hundred times more feeble than upon our globe.
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