He took a number of cords of different lengths and hung them from the ceiling. To the free end of each cord he fastened a weight.

他找出一些长度不等的绳子，从天花板上垂吊下来，并在每根绳子的末稍挂了一个砝码。

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An annular, concentrically twisted bead cord is provided which can be reduced in weight while ensuring strength. Also provided are: a process for producing the bead cord; and a vehicle tire.

本发明提供了一种能够在保证强度的同时实现重量减轻的环形同心绞股胎圈帘线及其制造方法、以及车辆轮胎。

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Results Cord serum concentration of RBP and PA in normal birth weight infants and their mothers was higher than that of RBP and PA in low birth weight infants and their mothers.

正常体重儿母亲血RBP和PA水平明显高于低体重儿母亲的RBP和PA水平，结论脐血RBP、PA水平有可能成为反映围产因素造成的胎儿宫内营养不良的有用指标。

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