查询词典 lead-free

III. Semantic and pragmatic features of narrow-sense accusative subject sentences in newspaper news lead.

报纸新闻导语狭义受事主语句的语义和语用特点。

To explore the effect of lead acetate on the growth of murine mesenchymal stem cells in vitro.

目的：探讨醋酸铅对小鼠骨髓间充质干细胞生长的影响。

Objective To investigate the effect of lead acetate on the growth of cultured hippocampal neural cells and expression of nNOS.

目的 研究不同剂量醋酸铅对原代培养的海马神经细胞生长和神经元型一氧化氮合酶表达的影响。

Objective To study the damage effect of lead acetate on DNA and its mechanism and the changes of antioxidative enzymes in vivo.

目的 探讨醋酸铅对动物体内DNA的损伤作用、机制以及抗氧化酶的变化情况。

Under light microscope, lead acetate had no effect on the cell morphology and cytoskeleton.

光镜下观察，乙酸铅对PC 12细胞的形态和细胞骨架无明显改变。

Lead acetate had no effect on the activity of calpain in PC 12 cells.

乙酸铅对PC 12细胞的calpain活性无明显改变。

The acetone of concentration at 7, 5%0 could lead to 50% enzyme activity lost.

导致酶活力丧失50％的丙酮浓度为7.5％。

They claim to have found "a viral Achilles' heel" that could lead to the development of a flu vaccine.

他们说发现了"病毒的一个致命弱点"，从而可以开发出一种禽流感疫苗。

A pot experiment was conducted to study the absorption and accumulation characteristics of tomato to lead in acid yellow soil .

通过盆栽试验，研究番茄对酸性黄壤中铅的吸收和积累效应。

Furthermore, the acid rain will also lead to soil acidification.

此外，酸雨也会导致土壤酸化。

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。