查询词典 by air

During the reaction of catalytic oxidation of mesitylene by air in the gas-liquid phase to synthesize trimesic acid as well as the correlative process, with the aim of controlling the product's quality and improving its reaction yield, it's necessary to bulid a set of reliable and integral analysis methods.

在均三甲苯气液相催化空气氧化合成均苯三甲酸的反应及相关的工艺过程中，为了更好的控制产品质量和提高反应收率，建立一套可靠完善的分析方法是很有必要的。

The above analysis methods are easily to operate and apply. They provide a great deal of data for chemical process controlling and optimizing, and are successfully applied with catalytic oxidation of mesitylene by air in the gas-liquid phase to synthesize trimesic acid and the correlative chemical process.

上述分析方法，操作简便，应用便捷，为工艺过程控制和优化提供了大量数据，成功应用于均三甲苯气液相催化空气氧化合成均苯三甲酸的反应及相关的工艺过程中。

In the gas-liquid phase reaction of catalytic oxidation of mesitylene by air to synthesize trimesic acid and the related process,an analysis method of reaction components was proposed,which includes chromatographic analysis,mass spectral analysis,IR spectrum,atomic absorption spectrophotometer and chemical titration for the purpose of analyzing reaction groups.

针对均三甲苯气液相催化空气氧化合成均苯三甲酸的反应及相关的工艺过程中，反应产物均苯三甲酸的分析问题，提出以色谱分析、质谱分析、红外光谱分析、原子吸收光谱分析及化学滴定为主要分析手段对反应组分进行分析，重点研究并建立了相关的分析方法。

The metallurgist has recently found a metal skin for missiles and supersonic planes,one that will retain its strength at the high temperature caused by air friction.

冶金学家最近发明了一种用于导弹和超音速飞机的金属外壳，这种外壳在大气摩擦引起的高温下仍然能保持其强度。

The metallurgist has recently found a metal skin for missiles and superonic planes, one that will retain its strength at the high temperature caused by air friction.

personal version：最近冶金学家发现了一种可以用作导弹和超音速飞机外壳的金属，这种金属能在空气摩擦而产生的高温下保持其硬度。

For example, multinational companies every year to published a batch of product samples or the operation and maintenance manuals, and so on, in the past are all over in accordance with national or report the incident to the needs of the notational business card printings and membership cards, and then transported by air or sea transport distribution.

例如跨国公司每年均给印不收一批产物样本或操纵修理手册等，此刻均是按列国或各不天上报的必给数制卡和会员卡制作，然后再空运或海运不募集。

And it wasdecreased gradually with the altitudinal hoist. But there wasexception by air overfall factors, for example Tieganlike.

但是，受当地空气湍流的影响等因素，会出现例外，如铁干里克。

The Germans, for instance, had attempted to supply the Von Paulus's Sixth Army at Stalingrad by air.

例如，德国人也曾试图通过空运向围困在斯大林格勒的冯·保卢斯的第六集团军运送补给。

LA PAZ can also be reached by air as there is an international airport.

拉巴斯有一个国际机场，从飞机可以直接到达这里。

In order to acquaint you with the textiles we handle, we take a pleasure sending you by air our latest catalogue for your perusal.

为了使你了解我们手头上的纺织品，我们用航空邮件寄去了我们最新的产品目录供你阅读。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。