During the calculation of the early age temperature field, the early age physical and mechanical performance of concrete varies with its age, therefore in the second chapter we discuss the early age physical and mechanical performance of concrete and its development regulation with time, we emphasize elastic module and the development about the early age strength of concrete varying with time, at the same time consider the effect of shrink and creep upon the early age of concrete, in succession discuss how to confirm the physical parameter of thermodynamics of concrete.

之后討論了混凝土的熱物理參數(shù)的確定。為了能夠正確合理的應(yīng)用有限元方法求解早期混凝土溫度場問題免费观看黄色网站视频，第三章論述了求解溫度場的有限元方法欧美一级αA。第三章首先對(duì)熱傳導(dǎo)的微分方程作了闡述。之后確定溫度場的邊界條件成年色色色。本章采用變分原理推導(dǎo)有限單元法計(jì)算溫度場的公式超碰在线色婷婷。因此在第二小節(jié)敘述了變分原理，然后闡明了不穩(wěn)定溫度場的計(jì)算的三種方法影音无码资源，確定第四章分析中將采用向后差分法求解0#箱梁早期的溫度場亚洲黄网页。

Denialists often claim that HIV has never met "Koch's postulates"- a list of conditions that must be met to prove that a particular infectious agent causes a disease, drawn up by 19th-century German scientist Robert Koch.

反對(duì)者們的理由是HIV并不滿足&科赫基本原理&——19世紀(jì)德國科學(xué)家羅伯特·科赫提出的這項(xiàng)原理列舉了一系列要證明某種疾病是由某種病原體引發(fā)所需的必要條件。

The scanning principle of CT or MRI and the fundamental principle of RPT are logically accordant. Data format conversion and modeling are a key of integrating this two advanced technologies.

CT或MI掃描原理與快速原型技術(shù)的基本原理從邏輯上是一致的欧美性日本黑人HD，數(shù)據(jù)格式轉(zhuǎn)換和建模是這兩種先進(jìn)技術(shù)結(jié)合的關(guān)鍵問題黄频网站久久。

This paper is based on theories knowledge of the database, compiler implementation, data construction and program design. It mainly makes use of the syntax phrasing system with translation principle to realize the semantic analysis of the search language QL.

論文摘要：本文是基于數(shù)據(jù)庫、編譯原理黄色AA视频、數(shù)據(jù)結(jié)構(gòu)iGAo视频网站在线观看、程序設(shè)計(jì)等理論知識(shí)，主要是運(yùn)用語法制導(dǎo)翻譯原理国产第一页屁屁影院，對(duì)數(shù)據(jù)定義語言中的查詢語句進(jìn)行語義分析與實(shí)現(xiàn)欧美视频经典亚洲。

The methods how to judge the character of anti-peel-back of phenolic resin according to viscosity curve was also anaoyzed.

分析了覆膜砂脫殼的原理以及根據(jù)粘度變化曲線判斷樹脂抗脫殼性的原理。

In the dissertation, I find the informativeness contains the controllability, and the controllability does not contain the informativeness.

在績效指標(biāo)的選取中亚洲性免费，理論上的指導(dǎo)原則是信息性原理久久精品亚洲；而實(shí)務(wù)中常用的指導(dǎo)原則是可控性原理。

In addition, the detailed introduction is given on the endstation of atomic and molecular physics. The formative mechanism of molecular beam is discussed. The theory of time of flight mass spectrometry and multi-photoionization chamber are also discussed in this chapter. Last, the method of data acquisition is described.

另外黄网站18，對(duì)原子分子物理實(shí)驗(yàn)站作了具體介紹98人妻色色，討論了分子束的形成機(jī)理、飛行時(shí)間質(zhì)譜儀的設(shè)計(jì)原理及多級(jí)光電離室的原理和結(jié)構(gòu)日韩综合一区视频在线91，給出了該實(shí)驗(yàn)站儀器配備情況男人天堂一道本在线视频，并簡要介紹了該實(shí)驗(yàn)站配套的數(shù)據(jù)采集方法日本大片黄色。

Based on the law of electromagnetic induction, a method to measure the magnetic susceptibility variation of liquid metals was proposed and the instrument was developed. The fundamental of the instrument was also analyzed.

摘 要：提出一種基于電磁感應(yīng)原理的測量液態(tài)金屬材料磁化率變化的方法并開發(fā)相應(yīng)裝置，分析該裝置的基本工作原理18岁免费在线观看黄。

The DC sensing theory and method based on magnetic potential self-balance and feedback compensation are studied in this paper.

本論文研究了一種基于開環(huán)原理與閉環(huán)原理相結(jié)合的磁勢自平衡回饋補(bǔ)償式直流傳感機(jī)理與方法及其實(shí)現(xiàn)国产精品视频熟女一区二区。

Rotating speed detection circuit and inspire current detection circuit principle and magnetic current detection principle of which is similar.

轉(zhuǎn)動(dòng)速度檢測電路和激發(fā)電流檢測電路的原理和磁場電流檢測的原理是相似的。