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1·When the blood lead level was adjusted by covariance analysis, reactive time in choice reaction test of the ALAD1-2 genotype was closed to that of ALAD1-1 homozygote.

在应用协方差分析充分均衡了两组的血铅水平后，ALAD1- 2的选择反应时间与ALAD1- 1组十分接近。

2·At the same time, due to the improvement of building level, more and more high buildings have come into being, which accordingly lead to some complicated disputes.

同时由于建筑水准的提高，高层建筑物层出不穷，由此引发的纠纷也更加纷繁复杂。

3·France took an early lead but Wales drew level (ie equalized the score) before half-time.

法国队开始时领先，但中场休息前威尔士队已与之拉平。

4·At the same time, the application circuit of12V sealed lead-Acid battery dual-level float charger, which is simple, feasible and stable is produced.

同时给出了一种简单实用、工作稳定且性能可靠的12V密封铅酸电池双电平浮充充电器的实际应用电路。

5·It inputs parameters such as lead time, customer demand inventory replenishment interval of the horizontal level of service and inventory costs. And some conclusions are drawn.

研究仿真模型的输入参数如订货提前期、客户需求间隔对横向补货库存系统服务水平、库存成本的影响，得到一些结论。

6·On the other hand, they need to reduce production cost, shorten lead time, and lower inventory level to ensure profitability.

另一方面他们需要降低生产成本，缩短交货期和降低库存水平以确保盈利能力。

7·According to theory, lead-acid batteries need to check the density of the electrolyte and the height of the liquid level at each time of maintenance, if there is a lack of need to add distilled water.

按照理论上说，铅酸蓄电池需要在每次保养时检查电解液的密度和液面高度，如果有缺少需添加蒸馏水。

8·Two-echelon inventory problem with service level constraint and unknown distribution function was analyzed when controllable lead time was sensitive to order quantity.

研究了基于服务水平约束的提前期内需求分布函数未知和可控提前期对订货批量敏感条件下的两级库存优化问题。