vacuum forepump是什么意思

用法例句

According to their positions (preposition/postposition)in the sentence,this dissertation explores the typology and grammatical features of orientated adj -noun phrases.

定位短语是从分布位置上划分出来的短语类型,本文根据前置/后置这条标准探讨了一类形名短语的类型及语法特征。

Inversion occurs between subject and predicate while prepositions are other members.

前置现象貌似倒装,理清楚两者之间的差异才能避免在教学中造成混乱。

Ward provides a comprehensive account of three major classes of noncanonical syntactic constructions in English: preposing,postposing and argument reversal.

该书全面叙述了英语中的三类标记性句子结构,即前置、后置和论元颠倒结构,总结各类标记句序共同的语篇特征,探讨不同句法结构之间的句法共性是否或如何跟它们的语篇功能上的共性相对应。

It is particularly important to choose right ingredients of the spacer for well cementing in sea-water drilling fluid.

前置液是影响固井质量的重要因素之一,对于海水钻井液体系,如何选用前置液是一个新的课题。

Taking an oil soluble resin A with good stability as the main material, a temporary-bridge ahead fluid used in high permeability cement sand control technology was developed in the paper.

本研究以稳定性较好的油溶性树脂A为主要原料,率先研制出适合高渗透水泥防砂的屏蔽暂堵型前置液。

For fracturing design,ahead fluid volume is an important operation parameter,which directly influences fracture morphology,fracture results or even results the success or failure of the operation.

压裂设计中,前置液用量是一个重要施工参数,它直接影响着裂缝形态、压裂改造效果,甚至决定压裂施工的成败。

Technique of Real-time Display of 3-D Solid Section in Pre-process Module of Foundry CAE System;

铸造CAE系统前置处理模块中三维实体截面实时显示技术

Based on the pre-process, numerical simulation and post-process, the application of visualization technique, which is used in the numerical analysis of resistance spot welding process, is introduced.

从前置处理、数值计算及后置处理三个方面出发 ,着重介绍可视化技术在电阻点焊过程数值分析软件中的应用。

It is necessary to develop efficient pre-processors to acquire the design information and transform them into manufacturing data that can be used in process analysis.

前置处理接口中的设计模型信息提取接口用三维CAD软件的二次开发技术提取完整的零件结构信息;制造特征映射接口用三维特征识别和映射技术将提取的设计信息转换为制造模型。

,a method of how to accept the data acquired by FDCS front-end processor through Windows application program of the third party is introduced.

以涟钢动力厂煤气除尘工程为实例,介绍了一种如何通过第三方Windows应用程序来接收FD-CS前置机采集到的数据,并通过DDE把这些数据输送给In Touch客户程序,从而在FDCS前置机与In Touch工控软件之间实现动态数据交换。