PRE的例句大全

Method for measuring trace gold with X-ray fluorescence after pre-enrichment is presented. The gold is enriched in a medium of 10% aqua regia in presence of Br 2 with polyurethane foam loaded with diphenylthiourea and methyl isobutyl ketone.

报道了在10%王水介质中，有Br2存在时用二苯基硫脲&甲基异丁酮泡沫塑料富集、X射线荧光测定痕量金的分析方法。

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A nickel based naphtha steam pre reforming catalyst for methane enriched gas production was laboratory prepared.

在实验室研制了镍系轻油蒸汽预转化制取富甲烷气催化剂。

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Coat the sealing ring inside and out with fresh engine oil and pre-position it on the crankshaft flange.

用新鲜机油涂抹密封圈内外侧，并预先放在曲轴法兰上。

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During the producing of cultured cream, there are the main processes to be controlled, including pre heat, standardisation, homogenisation, heat treatment, inoculation and incubation etc.

在酸奶油的生产过程中，其主要工艺过程预热分离、标准化、均质、热处理、接种、发酵等均需严格控制；

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The effect of solution, reduction temperature, reduction time and pre-reduction process on the preparation of 13X loading with cuprous ion were examined and the preparing conditions were optimized.

实验考察了负载溶液、还原时间、还原温度以及预处理等方面对吸附剂制备的影响，得到了制备载铜13X吸附剂所需要的最优化条件。

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The effect of room temperature Pre-deformation on cyanide hardening proces was studied.

本文探讨了室温予变形对氰化过程的影响。

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The Pre-ICDRA meeting will include discussions on regional and international cooperation, work sharing, capacity building, inspections, and active pharmaceutical ingredients.

ICDRA预会将包括关于区域和国际合作、分担工作、能力建设、检查以及有效药物成份的讨论。

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The combining power of the Schick test toxin prepared with crude toxin standard was 2~ 5 times as strong as that pre-pared with purified toxin standard.

原制锡克试验毒素的结合力一般为精制的2～5倍。

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A Kind of New Technology of Concrete Backfill Using for Embedded Pre-pressure Steel Pipe in Xiangshui Hydropower Station

响水电站埋藏式预压力钢管混凝土回填新技术

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Comparing with conventional concrete backfill technology, the new one of concrete backfill using for embedded pre Pressure steel Pipes has some advantages such as shorter construction period, lower cost.

埋藏式预压力钢管混凝土回填新技术与常规回填相比，简化了施工措施，缩短了工期，具有良好的技术经济效益。

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A pre-shaped hollow case of clear plastic is heat sealed to enclose goods onto a backing board which have been printed and coated with blister pack solution.

把物品放在一个定形透明胶壳内，用热力把它封贴在一片印好和涂上压索油的纸板上。

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Discussing the problems in operation of large pre-baked anode cell in China

我国大型槽管理中的几个问题

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A pre-paid phone card.

一种先付话费的手机卡。

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Numerical simulations were carried out to investigate the in-furnace combustion parameters at 1000/ 0 BMCR ( boiler maximum continuous rating) load of pre-and post-retrofit cases.

用数值模拟的方法对改造前和改造方案在10000/BMCR负荷下的炉内燃烧参数进行研究。

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The debt/ asset ratio ( DAR) is used as the scale index of financing structure. Meanwhile the study sets operations ratio ( pre-receivables) and financing ratio ( issuance of bonds and bank loans) to indicate the debt channels.

在解释变量上，采用资产负债率（DAR）来衡量企业的融资结构，并设置经营活动比率（企业的预收款）和筹资活动比率（发行债券和银行借款）来表示融资渠道。

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The Cognition of the Biological Value in Pre-Qin Times

先秦时代对生物价值的认识

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Fluorometric Detection of Biogenic Thiols in Lake Sediment Porewaters by High Performance Liquid Chromatography with Pre-column Derivatization

高效液相色谱荧光检测湖泊沉积物间隙水中的微量硫醇

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The selectivity of the method may be increased by addition of thiocarbamide as masking reagent and pre-separation of the interferential elements using NH_3-NH_4Cl. This method is simple, rapid and accurate.

加入硫脲作掩蔽剂和用NH3-NH4CI预分离干扰元素可提高方法的选择性。

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The Pre-reinforcement of Subway Passing Through the Bell Tower of Xi'an and the Construction Measures of Shield Machine

地铁线路穿越钟楼的预加固及盾构施工措施

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Practices of prolonging the service life of 135 kA pre-baked anode reduction cell

135kA预焙阳极电解槽延长槽寿命的生产实践

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