多级的

Multistage centrifugal pumps; mine drainage pumps, with pump total head up to 1000 m at speed of rotation 1500 l/min

多级离心泵。公称转数每分钟1500转时扬程为1000米的抽水泵

The analysis of characteristic and engineering APP foundation on series ejectors.

金良安。多级喷射器的特性与工程运用基础研究。

We have imported some state-of-the-art equipments such as: high-frequency Vibroseis and multi-level geophones for field data acquisition.

在采集上，引进国外高频可控震源，多级检波器等主要设备，得到高采样率、高信噪比、高分辨率的高品质资料。

In order to compare the air disinfection efficacy of circulating air disinfection machine and ultraviolet lamp, multigrade impinger--type sampler type FA--1 was used for sampling.

为比较循环风消毒机与紫外线灯对空气的消毒效果，用FA—1型多级撞击式采样器进行了采样检测。

METHODS: Following the literature review, 26 experts in the field of psychology and military administration, using Delphi s and job analysis and the technique of multigrade fuzzy set, screened evaluating items for the questionnaire assessing the psychological qualifications of low .

采用职务分析法、文献回顾和特尔菲专家评判法；2 6名心理学和军事学专家参加优秀初级军官心理品质的筛选；采用多级估量模糊集评判技术编制《调查表》；6 2 6 3名各军兵种和军队院校干部、学员和连队班长接受调查，回收有效《调查表》90 0 4份。

Irreversible sorptions of pesticides Azinphos-methyl,Diuron,Atrazine and Prometyn on Kaldenkirchen soil were studied by a method of soil column liquid chromatography with stepwise adsorption/desorption .

利用土壤柱液相色谱多级吸附/脱附法研究了保棉磷、敌草隆、莠去津和扑草净在土壤中的不可逆吸附及其影响因素。

Small-signal model is suggested to analyze jitter of the clock driver caused by thermal noise.Multi-level quasi-infinite load differential amplifier structure to effectively achieve low clock jitter is proposed.

提出采用小信号模型对时钟驱动电路中由热噪声引起的时钟抖动进行分析，并提出采用多级准无穷负载差分放大器结构以有效地实现低抖动。

The model aims at minimum annual cost (including operating cost and equipment depreciation cost) of whole evaporation system (including two sequential system——multi-evaporation system and multi-level preheating system). The tempreture of flesh vapor, the tempreture of condenser, effective heat-transfer temperature difference of vari-effect, and outlet solution temperature of vari-level preheater were both decision variables.

优化设计数学模型以整个蒸发系统(包括多效蒸发和多级预热两个序贯系统)的年总费用(包括系统年操作费用和设备年折旧费用)最小为优化目标，以生蒸汽温度T0、冷凝器中二次蒸汽温度Tk、各效蒸发器有效传热温度差Δti及各级预热器溶液出口温度tpj为决策变量。

The SpitFire 3.2 multi-stage heat exchange system creates high solution temperatures by using engine block heat, vacuum blower heat, and engine exhaust heat.

Spit Fire3.2独特的多级热交换系统，充分利用了发动机散热、真空送风机散热和发动机尾气热量，加热清洗液，使清洗在高温、高效率下进行。

Multi-stage steam jet vacuum pump pressure can reach down to 0.01mbar.

多级水蒸汽喷射真空泵的抽吸压力可以达到低至0.01mbar。

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％。