查询词典 zinc

Measuring the zinc in ragworm jaws was thus thought of as a way of monitoring zinc pollution.

这样一来，检测沙蚕颌齿的锌就可以作为监测锌污染的一种手段。

This study revealed that livestock organizations should enhance auditing content of copper and zinc in animal feeds, track accumulation of copper and zinc in pig manure which fertilize the cropland, provide pig farm owners education of pig feeds heavy metal content and environmental protection of pig farm, draw up strategy of integrated culture pig farms which set up Solid-liquid separation equipment and establish Taiwan pig farms SFA database.

综合本研究所建立之初步重金属铜、锌物质流模式研究结果，畜牧管理单位应加强检测饲料中重金属含量，追踪猪粪堆肥重金属施放於农地后的累积量，并提供畜牧业者饲料重金属添加与环境保护之教育宣导，研拟渔牧共养型态装设固液分离设备之可行政策，未来则必须尽速建立国内养猪业的物质流环境资料库以确实掌握其流向与流量。

CHI 630 electrochemical tester was applied to analyze E-t curves of zinc platings on Al-Si alloy and polarization curves in 3.5% NaCl solution, prepared by zinc baths with different amount of stabilizers.

利用CHI630电化学分析测试仪研究了在浸锌溶液中加入不同稳定剂及不同含量的最优稳定剂后试片在浸锌过程中的活化电位随浸锌时间的变化曲线和浸锌后的试片在3.5% NaCl溶液中的极化曲线。

Basic zinc potassium chromate pigments and zinc tetrahydroxychromate pigments.

碱性铬酸锌钾颜料和四氧铬酸锌颜料

By analyzing and comparing the above test results, the special demands for welding current and time and pressure in the spot welding of zinc-coated steels were put forward. The relevant spot welding parameters for every kind of zinc-coated steels were proposed.

根据对上述试验结果的分析和比较，提出了锌镀钢板点焊时焊接电流、焊接时间和电极压力等参数的选用原则，并对几种镀锌钢板给出了相应的点焊规范范围。

The active zinc borate, hydrophobic and oleophilic, is prepared, using borax, zinc sulfate, boric acid and fatty acid or its salt as the material and water as the solvent, by controlling the proper reaction temperature, solid-to-liquid ratio, material ratio, reaction time and the addition quantity and time of the fatty acid or its salt and by filtering, drying and pulverizing.

本发明以硼砂、硫酸锌、硼酸和脂肪酸或其盐为原料，以水做溶剂，通过控制适当的反应温度、固液比、物料比、反应时间及脂肪酸或其盐的加入量及加入时间，通过过滤、干燥和粉碎制备出疏水亲油的活性硼酸锌。

About 6 years ago, Dana Carroll of the University of Utah in Salt Lake City and colleagues built zinc fingers--molecules that recognize and attach to specific DNA sequences--and joined them with enzymes that slice through the DNA at that same spot to create zinc-finger nucleases.

大约6年前，盐湖城犹他大学的达娜·卡罗尔和同事建立锌指分子结构，它可以识别及固定在特定的DNA序列上，然后与可以在同一点切割DNA的酶结合，形成锌指核酸酶。

One company provides customized zinc fingers, but Voytas, J. Keith Joung of Massachusetts General Hospital in Boston, and their colleagues have instead developed a zinc-finger resource freely available to other researchers for generating the appropriate nucleases.

一家公司提供商业化的锌指结构，但是丹尼尔和波士顿马萨诸塞州总医院的J·基思将锌指资源免费提供给其他想得到特定核酸酶的研究人员。

Zinc-coated steel and other zinc containing products are slow to enter the recycling circuit due to the very nature of their durability.

镀锌钢材和其它含锌产品因为耐用性比较长，所以进入回收循环很慢。

A series of spot welding technology and joint tensile-shear tests for uncoated low carbon, electroplated and two kinds of hot dipped zinc-coated steels were made to improve the quality of spot welding joint for zinc-coated steels. The test results were analyzed with computer regressive method. The effects of welding current or time on nugget diameter or joint tensile-shear strength and critical curves in splash generation for spot welding were obtained.

摘 要：为提高镀锌钢板点焊接头的质量，对普通冷轧钢板、电镀锌钢板和两种镀锌层厚度不同的热镀锌钢板进行了一组点焊工艺及接点强度试验，并对试验结果进行了计算机回归分析，分别得出了这几种材料在不同的焊接电流、焊接时间下的点焊熔核直径或接头拉剪强度变化曲线以及点焊飞溅临界曲线。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。