when germany renewed unrestricted submarine warfare, the u. s. entered world war i in april 1917.

1、

the optimal design of blocked and split-plot experiments

区组实验及裂区实验的最优设计

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2、

split plot design was used with variety in the main plots and p and k combination treatments in the sub-plots.

田间试验采用裂区设计，将品种设在主区，磷、钾肥配合处理设置在副区。

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3、

english version, minimum secondary aberration fractional factorial split- plot designs in terms of consulting designs .

用参照设计刻画最小附加混杂部分因析裂区设计。

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4、

what part of an inverse tangent function approaching an asymptote don't you understand?

反正切曲线接近渐近线哪个字你不明白啊？

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5、

not really. i feel somewhat like an inverse tangent function that's approached an asymptote.

不太好。感觉像是反正切曲线接近渐近线了。

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6、

new development on lead-free sealing glass of phosphate system

无铅磷酸盐封接玻璃的最新进展

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7、

thermodynamic analysis on calcium phosphate system

磷酸钙体系热力学分析

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8、

determination of bismuth in drugs by resonance light scattering spectra of bismuth phosphate system

磷酸铋体系共振光散射法测定药物中的铋

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9、

a comparable lithium-iron-phosphate system would set you back around $7, 500.

而具有相近性能的锂铁磷酸盐体系仅花费7,500美元。

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10、

it could be less if you have a multiple cat household in which the cats keep each other company.

如果你家里有很多只猫的话时间可相应减少，因为猫咪们可以互相做伴。

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11、

we can help each other to take care of our bags and get , as well as keep each other company while waiting in long lines.

我们可以帮对方看行李，以及获得资讯，而且在排长队时可以彼此做伴。

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12、

wherever you come from, from now on, we are a big family and we are going to keep each other company throughout this journey.

从现在开始我们就是一个大家庭，让我们携手共同走过在北大的岁月。

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13、

riches and virtues do not often keep each other company.

财富和美德常常不相伴。

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14、

as long as you're up, i might as well get up, too. we can keep each other company.

只要你一起床，我不妨也起床，我们可以彼此陪伴。

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15、

three is a good number because your two friends can keep each other company when a guy walks up to chat with you.

3这个数字好因为当一个男人和你说话是，你的两位朋友可以彼此交谈。

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16、

nasa explores polar light energy nasa mission to seek polar lights' energy source

美国宇航局探索极光能源

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17、

polar lights can be seen in finland.

芬兰可以看到极光。

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18、

the photo appears the polar lights are blue in terms of using ultraviolet camera, however, which is seen red by planet observers.

图片上的极光是蓝色的，因为照相机是紫外照相机，但是行星观测者看到的却是红色的。

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19、

the value of diagnosis in acute pancreatitis by determined urinary trypsinogen-2 method

尿胰蛋白酶原-2快速检测在急性胰腺炎诊断中的价值

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20、

the diagnostic value of urinary trypsinogen-2 in screening acute pancreatitis

尿胰蛋白酶原-2的测定对急性胰腺炎的诊断价值

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