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- metal lead powder 金属铅粉
- Using potted trial, the soil heavy metal lead pollution influences on maize plant growth were studied under lime ameliorant condition. 摘要采用盆栽试验，研究了在施用石灰改良的条件下，土壤重金属铅污染对玉米生长的影响。
- Extraction of metal lead by smelting floated galena concentrate is conventional process.The produced gas in this process polluts surroundings. 从方铅矿精矿中提取铅多采用传统的火法工艺,得到的是金属铅,然后再加工成相应的铅盐。
- The Greeks and Romans used metallic lead for drawing faint lines. 古希腊和古罗马人使用金属铅来画暗淡的线。
- Objective: To study the effects of clarificant chitosan on contents of zinc,manganese,calcium and heavy metal lead in the water extraction liquid of chinese herbal medicines. 目的:探讨壳聚糖絮凝澄清剂用于精制中药水提液时对锌、锰、钙及重金属元素铅的影响。
- The lime control effects are represent on plant high, leaves area, root cubage and others for maize plant growth influenced by heavy metal lead, and the differences are prominent between meliorative treatment and single lead pollution treatment. 石灰对重金属铅影响玉米生长的抑制效应表现在株高、叶面积、根容积等，改良处理与单一铅污染的处理差异显著。
- Special angle strengthened bit design intensifying blade protection and quickly leading powder into screw groove,which reduce resistance and improve in-aperture speed. 特殊角度强化刀头设计，强化刃部保护，并将粉末快速导入螺旋沟槽，减少阻力，提高进孔速度。
- Handle the battery pack very carefully. Avoid touching the metal leads on the connector of the battery case. 请谨慎处理电池组。避免接触电池组外壳连结埠上的金属接点。
- Since you washed the lead powder used in cosmetics off the face 从你洗尽铅华
- Car's discard is sour to leak nature and can cause soil and headwaters to pollute with heavy metals lead in the battery, end rightness artificial become bane. 汽车废电池中含有酸和重金属铅泄漏到自然界可引起土壤和水源污染，最终对人造成危害。
- The carbon, which is protected within a sandwich of other materials, is more effective than metallic lead at exchanging protons with the acid during charging and discharging. 在充放电过程中，夹在其他材料层之间的碳可以比金属铅更有效的与酸进行质子交换。
- She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
- Can I fasten these metal plates with rivets? 我可以用铆钉把这些金属板固定在一起吗？
- Rapid FAAS Determination of Micro-amounts of Fe Cu Sb Ca in Lead Powder 原子吸收光谱法快速测定铅粉中微量铁铜锑钙
- You need a strong adhesive to bond wood to metal. 需要强力胶才能把木料粘在金属上。
- The car was now just a pile of twisted metal. 那辆汽车已经成了一堆压缩的废铁了。
- The metal basin clattered down the stone stairs. 金属盆子沿着石阶滚了下去，发出咣啷声。
- Aluminum is a kind of light silvery metal. 铝是一种轻薄并呈银色的金属。
- The aeroplane wing showed signs of metal fatigue. 机翼显出有金属疲劳的现象。
- The metal frame tends to twist under pressure. 这种金属框受压後容易变形。
