查询词典 aluminium family

In this work, isobutyl isobutyrate was prepared by the condensation of two molecular isobutyraldehyde in the presence of aluminium isobutoxide catalyst system.

依据间歇反应所得一系列数据，确定了异丁醛连续缩合反应工艺流程；考察了以异丁醛为原料，在 5～10℃，停留时间 1 5～ 2h ，在异丁氧基铝催化体系作用下，两分子异丁醛缩合成一分子异丁酸异丁酯；脱除催化剂后，粗产品精制得到纯度≥ 99 5 %的异丁酸异丁酯，异丁醛的转化率≥ 98 5 %，异丁酸异丁酯的选择性≥95 %。

Kinetics parameters of LaNi5-xAlx (x＝0, 0.1, 0.2, 0.3) alloys were measured. The influence of aluminium content on deuterating-dedeuterating kinetic function of LaNi5-xAlx was assessed under isothermal and isochoric condition.

测定了LaNi5-xAlx(x=0， 0.1， 0.2， 0.3)的氘化与去氘化的动力学参数，评价了铝含量对LaNi5-xAlx合金的氘化与去氘化动力学函数的影响。

A choice of polyurethane covered, knurled or plain aluminium measuring wheels is available.

聚氨酯的选择范围， knurled或纯铝测量车轮可用。

Inside, the interior is beautifully appointed with leather and knurled and polished aluminium; it, like the exterior all relatively understated.

内部人士说，其内部是美丽的任命与皮革和knurled和抛光铝；它一样，外观都相对低估。

Knurled aluminium measuring wheel fitted as standard Imperial or metric measurement units.

8226； Knurled铝车轮测量标准装备英制或公制计量单位。

W4D34 Shanghai Koda Aluminium Co., Ltd.

上海靠达铝业有限公司

Main process flow of aluminium heat exchange is as follows: dewinging→spare parts cleaning→core installation→braze welding→final argon-arc welding→ leak test→curb plate and accessory assemblage→lacquering→packaging.

铝换热器主要工艺流程是：冲翅→零部件清洗→装芯→钎焊→总成氩弧焊（总成装配→密封性检测→侧板及附件装配→喷漆→包装。

The significant changes was found in low and high aluminium exposed groups. Conclusions 1. Chronic aluminum exposure during pregnant and lactational stage can damagethe function of learning and memory of pups.

根据本研究所得的实验结果，可得出以下结论： 1、大鼠孕哺期铝暴露可使其子代鼠血铝、脑铝含量明显增加，并引起学习记忆障碍。

Consequently, studying the effect of aluminium on Long-TermPotentiation and approaching its possible mechanisms can elucidate the mechanisms ofaluminium on study and memory. The research indicated that the pregnant and lactational stage is the importantstage for the filial brain growth and development.

因此本次实验采用整体动物实验的方法，通过对大鼠孕哺期慢性铝暴露，以子代大鼠海马为研究对象，探讨大鼠孕哺期铝暴露后对其子代大鼠海马LTP形成、维持的影响，并从蛋白激酶C表达的途径为阐明铝影响LTP的机制提供思路。

Using the special-purpose cutting knife, cut pipes vertically, the cutter handwheel rotates 30 angles, the cutting knife rotates 1 circle along the round outside the pipe, does not exert oneself too quicklily while cutting to the aluminium layer, so as not to influence the aluminum pipe, deform it, the notch should have no burr levelly and smoothly

使用专用割刀，垂直切割管材，切割刀手轮旋转30角度，割刀沿管材外圆旋转1圈，割到铝层时不要用力过猛，以免影响铝管，使之变形，切口应平滑无毛刺

I am now full of energy and look forward to the tournaments lying ahead.

现在我感觉自己充满了力量，期待着比赛的到来。

It's small size and lightweight makes it easy to transport.

它的小尺寸以及很轻的重量使得它非常容易携带。