intermittent operations meaning in English

周期性的生产经营

Examples

( 2 ) the permeation process in the flat - sheet supported liquid membrane under intermittent operation is investigated
( 2 )采用平板型支撑液膜,测定各种操作条件下的渗透系数p 。
Pigging in pipe before inspection , pipe pigging under low throughput intermittent operation ; get rid of congealable oil , wax precipitation and incrustation in pipe to reduce backpressure and friction , and lower temperature
管线内检测前清管、低输量间歇运行输油管线清管；清除管线内部的凝油、结蜡、结垢，达到减小输油回压、减小磨阻、降低输油温度的目的。
Life is the main factor restricting air valve and spring - loaded valves quality , the general long - term continuous operation of the compressors to life 80 hours ; for mobile , short - term or intermittent operation of compressors , may require slightly more
限制气阀寿命的主要因素是阀片及弹簧质量，一般对长期连续运转的压缩机，希望寿命达8000小时以上；对移动式、短期或间歇运转的压缩机，要求可稍低些。
By way of analysis of heat transfer process of the field - test model , the author formulated a 3 - dimensions heat transfer model which is correspondent to actual performance of buried pipe - in - pipe heat exchanger . coupled with field testing data , the short and long term operation features has been thoroughly analyzed by finite element solution and forward finite - difference analysis of the heat transfer differential equations of buried pipe - in - pipe heat exchanger . by interpreting regularity of continuous and intermittent operations of buried pipe - in - pipe heat exchanger , its heat transfer mechanism has been further explained in this thesis
本文通过对试验模型热过程的深入分析，建立了与实际地下埋管换热器结构参数相吻合的三维传热数学模型，通过有限单元法和向前差分法求解相应微分方程并对分析结果进行关联耦合，详细分析了埋管换热器的短期和长期运行特性，对地源热泵套管式埋管换热器连续运行、间断运行规律进行了解析，进一步弄清了埋管换热器的传热规律。
The thermal process model of imbed pipe floor heating room at intermittent operation was set up by analyzing the thermal storage of enclosure . then , a solution method was give for it basing on duhamel theorem . the calculation results shown a good indoor thermal environment can be hold when the system , which designed on out door temperature for heating basis , operates half day in night under outer door mean temperature in winter
对典型房间的计算结果显示:系统间歇运行时，供暖系统开启和关闭后室内温度呈指数规律变化;当系统按供暖室外计算温度设计，实际运行日的室外平均温度等于供暖期室外日平均温度时，在室外逐时温度较低的时段低温热水地板辐射供暖系统运行半天左右可满足全天供暖室内计算温度要求。

intermittent operations meaning in English

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