查询词典 Zr

It shows that the time constant of RC circuit should be about 0.26 nano second to satisfy both conditions, the temperature of Exploding Bridge Wire is lower than the ignition temperature of the powder of Zr, which is 300℃, and the voltage of Exploding Bridge Wire is lower than the military standard of the safe electrostatic voltage .

本文以数值分析模拟在1秒的人体静电放放电时间作用下，推算电路所需连接的电阻与电容，模拟分析得到应连接放电时间常数τ等於0.26奈秒的电阻与电容，才可以同时满足金电桥温度低於点火药锆粉之点火温度300℃与军规安全静电电压100V以下。

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In the ultra high vacuum activation, reduction of the vanadium oxide started at a lower temperature (250℃ to 300℃), and the reduction of the titanium oxides started at a higher temperature(300℃).

当吸气剂置于高真空激活时，钒的氧化物在较低的温度(250℃~300℃)开始被还原，钦的氧化物在稍高于钒的温度(300℃)也开始被还原，400℃时表面已经有大量的金属钦的存在，而Zr的氧化物在(100℃~400℃)激活过程中，则没有明显的变化。

The coagulation-flocculation and sedimentation beaker test and productive test were conducted to compare the flocculating and sedimentation effects of aluminium sulfate and several polyaluminum chloride liquids.

通过混凝沉淀烧杯试验和水厂生产性试验，对硫酸铝和几种聚氯化铝进行了优选，最终确定由深圳中润水工业技术发展有限公司提供技术、太仓新星轻工助剂厂生产的ZR-3型聚氯化铝的混凝沉淀效果最佳。

The hexagonal-platelet Zr-Ce-SBA-15 materials were superior to the conventional SBA-15 of rod or fiber morphology in facilitating molecular diffusion when they were used in the adsorption, separation and catalysis processes.

与常规SBA-15相比，这种短孔道、大径轴比的六方板状介孔材料在吸附、分离及催化等领域中能更有效地促进分子的扩散传递。

Not only in low or wide temperature condition but also in higher temperature, Pt-Rh/Ce-Zr-Sr/Al_2O_3 can show high specific surface area raio and excellent stability. It is considered as the best catalyst, which has a promising industry application prospects.

和Sr含量为3 wt。%时，其催化活性达到最高，实现了在较低的温度和较宽的温度窗口具有较高的催化活性NO_x转化效率达到53%在高温条件下也显示了高比表面积和高稳定性。

The method of enzyme-linked immunosorbant assay was employed to determine the contents of indoleacetic acid, abscisic acid, gibberellin (GA3) and Zeatin under pot culture.

在盆栽基质培养条件下，进行了打顶和打顶+生长调节剂处理，采用酶联吸附免疫测定技术分析了烤烟根和叶中内源IAA、ABA、GA3和ZR的变化。

The methods of enzyme-linked immunosorbant assay were employed to detect endogenous contents of abscisic acid, indoleacetic acid, gibberellins (GA3, GA4) and cytokinins of immature embryos, embryonic and non-embryonic calli during culture process.

酶联免疫法测定不同培养时间后未成熟胚，以及由此诱导的胚性和非胚性愈伤组织，内源脱落酸、吲哚乙酸、赤霉素(GA3、GA4)和细胞分裂素(DHZR、IPA、ZR)含量。

The effects of ZrO2 loading and different pretreatments on the activity of Cu-Zr-Ce-O catalysts were studied.

结果表明。掺杂ZrO2的Cu1Zr1Ce9Oδ催化剂在160～200℃之间具有99％以上的CO转化率和相对较高的选择性。

Results showed that, after treating with 56 and 98 mmol/L NO3(superscript -) for 7 days, zeatin fiboside, gibberellic acid and auxin in cucumber roots were increased significantly, but abscisic acid was decreased, which suggested that activating enzymes were related to hormone synthesis and caused the growth and development of cucumber seedlings.

结果表明，黄瓜幼苗在56~98 mmoL/L NO3浓度范围内培养7 d。根中ZR、GA和IAA含量均比对照显著升高；ABA含量降低。

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。