Lead content and precipitation in the study of lead content is accumulated principle applied to the basis of practice.
铅含量与年降水量关系的研究是植物铅含量累积原理应用于实践的基础。
参考来源 - 合肥臭椿树木年轮δ~（13）C及铅含量动态研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The few lead content is beneficial in the precious metal cyaniding, but the high lead content in the gold concentrate roasting-cyaniding is harmful.
少量的铅含量在贵金属的氰化提金工艺中是有益的，但铅含量过高在金精矿的焙烧—氰化提金过程中是有害的。
The effects of cooling velocity, the lead content and the gravity on the microstructures of Al Pb alloy were discussed based on the results of optical microscope, SEM and quantitative metallography.
利用光学显微镜、扫描电镜、定量金相等技术研究了冷却速度、铅含量、重力作用等对铝铅合金显微组织的影响。
To observe the relationship between lead content in blood and urine and acute tetraethyl lead poisoning.
目的观察血铅和尿铅含量与急性四乙基铅中毒程度之间的关系。
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