查询词典 lead-free

Substandard toys will lead, especially in brightly colored plastic products, and some bad bottle system's color patterns also lead, so the best there is no pattern to the baby with the transparent bottle.

不合格的玩具是会含铅的，特别是颜色鲜艳的塑料制品，有的劣制奶瓶上的彩色图案里也含铅，所以最好给宝宝用没有图案的透明奶瓶。

In addition to a few main reasons for the above, the internal display if too much dust has accumulated, they easily lead to monitor the work of the internal components do not work, and ultimately will lead to display color images can not be accurate.

除了上面几个主要原因外，要是显示器内部积累了太多的灰尘时，也容易导致显示器内部的工作部件不能正常工作，最终也会引起显示器无法准确显示图象色彩。

Aim at the Non-destructive testing of thin-wall lead alloy castings, X-ray testing parameters are optimized and the hole-style image quality indicator is designed and manufactured,thus the X-ray testing and the process control of thin-wall curve face lead alloy castings are realized.

针对薄壁铅合金铸件的内部质量检测问题，通过优化射线检测参数和研制孔型象质计，实现了薄壁曲面铅合金铸件的射线检测和检测过程控制，并对在孔型象质计灵敏度控制下的渣孔类缺陷的检出能力进行了分析和试验。

Liu Dakun, director of Yunnan's lead prevention office for children, said that on average 50% to 60% of children under the age of 14 in the province's mining regions suffer lead poisoning.

云南省少儿铅防治办公室主任刘大昆说，在该省的一些矿区，14岁以下儿童铅中毒的比例平均有50%至60%。

This paper has carried out careful thorough research according to the EDTA basic principle of the content of zinc in titration mensuration lead zinc mine, for its mensuration condition , has given steady, reliable analysis method and operating step , can offer guidance and basis for the inspection of lead mine in mining, metallurgical profession laboratory.

本论文根据EDTA滴定法测定铅锌矿中锌的含量的基本原理，对其测定条件进行了细致深入的研究，给出了稳定、可靠的分析方法和操作步骤，可为矿山、冶金行业化验室中铅锌矿的检验提供指导和依据。

The oxidation process of lead sulphate in the inner part of the grain, which is formed directly by anodizing lead, is much slower.

至于颗粒内部由铅直接生成的硫酸铅的氧化为二氧化铅就要缓慢得多。

For leting drop quality fuel plenty of normal heptane have no lead tetraethyl ,Therefore be unlikely there not be the lead pollution .

因为低品质燃料多含正庚烷而不含抗爆剂四乙基铅，所以不会有铅污染。

For leting drop quality fuel plenty of normal heptane have no lead tetraethyl ,Therefore be unlikely there not be the lead pollution .

因为低品质燃料多含正庚烷而不含抗爆剂四乙基铅，所以绝对不会有铅污染。

The lead concentrations of trees and soils in urban Guangzhou are measured in this study.The results show that:mean lead concentrations of tree and top soil are respectively 23.4 mg/kg and 63.9mg/kg.

本研究测定了广州城市树木和土壤的铅含量，结果表明：广州城市树木叶子和表土的平均含量分别为23.4mg/kg和63.9mg/kg。

His teacher asked him why didhim lead back such a tree? He said, Having the former experience andpassed the more than half distance, I chopped the tree for it looked not bad lest i should miss it and lead back nothing.

老师问他，怎么带这棵普普通通的树回来，他说：&有了上一次经验，当我走到大半路程还两手空空时，看到这棵树也不太差，便砍下来，免得错过了后，最后又什么也带不出来。&

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。