freezing rate 中文意思是什麼

But in experiment ii, the obtained result of measurement and examination is not better than control group 。 conclusion : mixed animo acids can be safely applyed to vessel cryopreservation instead of calf serum 。 the effect of the groups of the rapid freezing method is not better than the groups of the rate - controled slow freezing

而實驗ii的血管其內皮結構不清晰，內皮細胞超微結構變化較大。結論：復方氨基酸可代替胎牛血清用於血管的深低溫保存.速凍降溫方式對血管深低溫保存效果不及慢凍降溫方式。

Method : 120 rabbit vessels were randomly divided into three groups : the vessel of control group in cryopreservative medium containing calf serum were subjeted to rate - controled slow freezing ; those of experiment group i in cryopreservative medium containing mixed animo acids were frozen by the same method as in control group ; and those of experiment group ii in the same cryopreserative medium as in control group were subjected to rapid freezing

材料和方法：取中國純種家兔股動脈120段，隨機分為3組：對照組用含胎牛血清的保護液處理，以慢凍方式降溫；實驗組1用含復方氨基酸的保護液處理，以慢凍方式降溫；實驗組ii用含胎牛血清的保護液處理，用速凍方式降溫。

Finally, we can not use electric power but the engine of bus or subsidiary engine to drive air compressors of bus air conditions. because the change range of turnaround speed of engine is very wide, that brings difficulties in controlling the rate of flow of cold - producing medium. in the control of bus air - conditions, preventing evaporator from freezing to make the air - conditions work with high efficiency and controlling the temperature of railway carriage are the basic tasks in air - condition control

與一般的建築空調相比，汽車空調的工作環境惡劣，條件差，控制難度要增加很多，主要體現在以下幾個方面：一是車外熱負荷變化大，難以確定控制參數；二是要求空調負荷大，而且要控制空調使其降溫迅速：三，不便於用電力作為動力源，必須用汽車發動機或輔助發動機來帶動壓縮機，當採用汽車發動機作為動力源時，由於汽車的車速變化大，發動機轉速的變化可從600r min到4000r min ，壓縮機轉速與發動機轉速成正比，其轉速變化高達7倍，給空調系統製冷劑流量控制帶來困難。

By using a same boundary dimensions high efficient and new type copper exchanger substituted carbon steel oil condenser, and increasing flow rate of circulation water to reduce the temperature of freezing oil which feeds into compressor stage, to eliminate the malfunction during compressor operation, and improve running efficiency of the machine

採取將碳鋼材質的油冷卻器更換成等外形尺寸的高效新型銅管換熱器、增加循環水流量的方法，降低了進入二段壓縮機冷凍油溫度，排除了壓縮機運行中的故障，改善了機組的運行效率。

And the third way is by freezing their current interest rate for five years

與第三條道路是由凍結其目前的利率為5年。

The study of high freezing - rate facilities using natural coldness resource ( ncr ) was analyzed according to the heat pipe technique in this paper

摘要通過試驗並加以理論分析，研究開發高結冰率的自然冷源貯藏設備。

The change of specimens scaling mass were measured, both the saturation degree of specimens and its changing rate within freezing - thawing are calculated

並通過測定混凝土試件的剝落量，得出了凍融循環過程中混凝土的飽和系數及變化速率。

By using the method of orthogonal table, the water binder ratio, air content and mineral admixtures which affect the saturation degree are analyzed in this paper. meanwhile in freezing and thawing cycle circumstance including water environment and 3. 5 % nacl liquor, the saturation degree and the saturation rate are also analyzed. moisture content of the concrete is different by varying water pressure

本文採用正交分析方法，研究了自然飽水和壓力飽水條件下水膠比、含氣量和摻合料三個因素對混凝土飽和系數的影響規律，並研究了混凝土在純水和3 . 5 % nacl溶液中受凍后飽和系數的變化規律。

The results indicate that drying thickness, radiant temperature and pressure of drying chamber are the most three significant factors. there ' s hardly any relationship between freezing rate and drying time, the sublimation drying time of slow freezing material is shorter than quick freezing one, but its desorption drying time is relatively longer, so the total drying time is approximately the same. the initial freezing temperature and freezing manner has little influence on vacuum freeze drying process

試驗表明：凍干厚度、加熱板溫度、系統的真空度是最重要的三個過程參數；凍結速率對總凍干時間沒有影響，慢凍物料的升華乾燥時間要比快凍物料短，但慢凍的解析時間相對較長，兩者的總凍干時間相差很小；初始凍結溫度對凍干過程的影響可以忽略。

( 2 ) because of t he variability of rock subjected to outside action, three new conceptions : postive damage basic damage and negative damage, are suggested, which can deal with the condition that rock density became large. ( 3 ) the present damage variables based on ct number mostly include ct average number of the rock without damage, which is difficult to measure, so a new damage variable, which includes the average ct number is proposed, on the other hand, strain equal theory is generalized because the one put foreword by lemaitre is not good enough to use. ( 4 ) a axial damage constitutive equation is proposed and testified. ( 5 ) with the circle times, the damage propagation laws of two different rocks, subjected to circle of freezing and thawing, are studied, and in the analysis process, traditional analysis method including average ct number and is used, some important conclusions are reached : inner damage of soft rock containing a large mount of apertures is largely propagating with the time increasement of circle, however, at the preliminary time, the hard rock containing a small mount of aperture is a little propagating, at late time, the influence become large ; ( 6 ) zone separation and statistics frequency put forward is used to analysized the three different damage propagation in the open circumstance, when they are subjected to the different circle times of freezing and thawing, in which the temperature variability is linear, different freezing rate, and different freezing temperature, and no water is supplied during the test

在研究過程中本文主要做了以下工作： （ 1 ）針對巖石損傷變化較小時，運用ct均值和方差分析不方便的缺陷，本文提出運用對ct數范圍劃分區段的方法，根據各區段統計頻率的變化規律來分析損傷擴展狀況； （ 2 ）針對巖石受到外部作用的多變性，本文提出了基準損傷，正損傷，負損傷的概念，在某種程度上考慮了巖石受到外部作用時的壓密情況； （ 3 ）現有的基於ct數的損傷變量大多需要用到巖石基體的ct均值，這實際上是很難觀測到的，因此本文建議了一個可運用巖石初始狀態ct均值的損傷變量，由於現有的勒邁特教授應變等價原理使用上的不便，本文在其基礎上進行了推廣； （ 4 ）建議了一個可用巖石初始狀態ct數和彈性模量的單軸損傷本構方程，並用算例進行了驗證； （ 5 ）對兩種不同巖石在開放環境下受到凍融循環作用且融化過程中補水時，內部損傷隨凍融循環次數增加的擴展規律進行了探討，主要運用了常規的ct均值和ct方差的分析方法進行分析，試驗發現：對于孔隙率和含水率較高，密度和強度較低的軟弱巖石，凍融循環次數對損傷結構的擴展有明顯的影響，而對于孔隙率和含水率較低，密度和強度較高的硬巖，凍融循環次數對其損傷結構擴展初期由於含水率低的原因，影響不是太大，而後期由於水補給后，含水率較高的原因，凍融影響逐漸增大； （ 6 ）運用了本文提出的區段劃分和統計頻率的方法，深入地分析了開放環境下的線性溫度變化的凍融循環次數，凍結溫度，凍結速度不同巖石作用時，其內部損傷隨凍融循環次數，凍結速度和凍結溫度變化的擴展規律，需要指出的是除了在試驗前飽水外，凍融過程中沒有補水。

Reasons of technique on low conception rate by artificial insemination with freezing semen in boer in fengyang county

鳳陽縣波爾山羊冷配低受胎率的調查與分析

Finally, a higher freezing - rate structure was got by the reshaped - experiment with copper pipe, at the same time, the experimental data were needed

再進行銅管設備的多種整形試驗，獲得結冰效率更高的結構造型，並通過數據加以證明。

The freezing rate also influences the rock damage propagation

研究表明凍結速度對巖石損傷擴展也有一定影響。

In the whole, the density get large when frozen, and the freezing rate is reverse rational to the degree of the density enlargement. the density get small when frozen, and the freezing rate is reverse rational to th

對于巖石強度較大，孔隙貫通程度較小的硬巖，凍結速度對其影響最大，凍結后巖石整體上密度呈增大的現象，但增大的程度跟凍結速度成反比。

The influence of various factors, including lowest pressure of the vacuum chamber, water content and size of the sample in three states of solid, lidquid or syrup, on cooling rate and on final sample temperature in self - freezing by vacuum pumping, was studied

摘要以液態、漿態和固態三種不同類型的物料為對象，通過大量實驗研究了真空室壓力、物料含水量和尺寸對抽真空自凍結的降溫速率和對凍結最終溫度的影響規律。