Improvement on Determination of Lead in Unleaded Gasoline by MIBK-Glacial Acetic Acid System;
应用MIBK-冰醋酸体系改进无铅汽油中铅含量的测定
A study on Burden of disease since the Application Unleaded gasoline in Shanghai;
无铅汽油推广使用以来儿童铅暴露对智力影响的疾病负担变化趋势分析研究
ObjectiveTo explore the health effect of air pollution frommotor vehicle emission on school pupils after introduction of unleaded gasoline.
[结论]无铅汽油对于降低学生血铅有积极意义 ,但是无铅汽油并不是无害汽油 ,汽车尾气的治理仍然是任重道
Survey on Lead Pollution and Urine Lead Level in Lead-exposed Workers of A Battery Factory
某蓄电池厂铅污染及铅作业工人尿铅水平调查
A survey on lead pollution and urine lead level in the workers of secondary battery plant;
某蓄电池厂铅污染及接触铅工人尿铅水平的调查
Survey of blood lead levels in inhabitants nearby a certain lead-zinc mine region in Guangxi
广西某铅锌矿区附近长住居民血铅水平的研究
Blood Lead Level in Children Around Lead Smelting Factory
某铅冶炼厂对周围儿童血铅水平的影响
a plumbing fixture that provides a flow of water.
提供水的铅管固定装置。
Elland eave-lead
爱兰屋檐铅皮排水槽
A lead weight suspended by a line, used to make soundings.
铅锤用绳子悬挂一块铅制的重物，用来测量水深
The Research on Treating Cr(VI) Wastewater Using Scrapped Pb-battery;
废铅蓄电池中铅泥膏处理含铬(Ⅵ)废水的研究
Effects of Lead Stress on the content of Lead and Mineral Element in Rice
铅胁迫对水稻中铅和矿质元素含量的影响
Research on Copper Water Jacket of Lead Tapping Port for Top-blown Lead Smelting Furnace with Oxygen Enrichment
富氧顶吹炼铅炉放铅口铜水套的使用研究
Studies on the Physiological Effects of Lead Stress on Rice Growth and the Characteristics of Uptake and Accumulation of Lead by Rice Plant;
铅胁迫对水稻生理生长的影响及水稻对铅的吸收积累特征研究
A horizontal line or plane at right angles to the plumb.
水平线与铅锤线成直角的水平线或水平面
Study on Arsenic, Lead, and Chromium Toxic Heavy Metals in Three Gorges Reservoir Region after Impoundment;
三峡水库蓄水后水体中有毒重金属砷、铅、铬研究
Water quality--Determination of Lead--Oscillopolarography
GB/T13896-1992水质铅的测定示波极谱法
written in biro, ink, pencil, etc
用圆珠笔、 墨水、 铅笔等写的
My pen's run out. Can I use a pencil please?
我的钢笔没水了。请问我能用铅笔吗？
It is necessary to move an appreciable mass of ink or lead.
必须使一定数量的墨水或铅产生运动。
a plumbing fixture that sprays water over you.
朝你喷水的铅管固定装置。
