She had known Max for some years now, but he was still pretty much an unknown quantity.
她现在认识马克斯也好几年了，但是他仍然是个大大的未知数。
The Frenchman was an unknown quantity when he arrived in north London back in 1996.
1996年，当他初到北伦敦时，这个法国人还只不过是个未知数而已。
Youth is the smile of the future in the presence of an unknown quantity, which is itself.
青春就是未来在向一个陌生人微笑，而这陌生人就是自己。
Additionally, an unknown quantity of methane in the form of hydrates (or clathrates) lies trapped beneath the polar sea floors.
此外，未知数量的甲烷以水合物(或气水化合物)的形式被困在极地海洋海底之下。
In algebra, the sign X usually denotes an unknown quantity.
在代数里，符号X常用来表示未知数。
Because he's been sheltered from publicity, William is very much an unknown quantity to most of his future subjects.
由于威廉一直避开宣传，他未来的臣民大都对他实在不甚了解。
Chinese cars do remain an unknown quantity to consumers, who were also once leery of the first cars imported from Japan - and later, from Mexico and South Korea.
对于消费者来说，中国汽车仍然是一个未知数，不过大家一开始对日本进口的汽车——以及后来的墨西哥车和韩国车——也曾经有过疑虑。
Under the physical coordinate, the horizontal displacement is taken as an unknown quantity, and a nonlinear problem with big displacement of solid mechanics is introduced.
采用物质坐标，用水平位移作为基本未知量，成为固体力学的非线性大位移问题。
And estimated the unknown quantity using the methods of least square estimation and local polynomial estimation, obtained the consistency of estimation under certain condition.
在半参数回归模型中采用最小二乘估计方法结合局部多项式方法来估计未知量，在一定条件下得到了估计量的相合性。
Unknown Quantity: a Real and Imaginary History of algebra.
《隐蔽的数量：代数的真实和想象的历史》。
Unknown Quantity: a Real and Imaginary History of algebra.
《隐蔽的数量：代数的真实和想象的历史》。
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