high vacuum technique 中文意思是什麼
high vacuum technique
解釋
高真空技術-
Fundamental of laser 40ar / 39ar dating method : our laboratory has successfully set up the laser microprobe 40ar / 39ar geological dating method. our works include adjustment of the high - gain electron multiplier in mass spectrometer and correction of mass discrimination, adjustment of the laser, test for absorption ability of minerals to laser, designing and manufacturing high - vacuum sample chamber, sample preparation and irradiation, research on the variability of j values on the surface of rock chips, measuring atmospheric argon, determination and correction of blanks and ages, etc. the laser microprobe technique is particularly effective for some geological samples. it can be used, for example, for research of distribution of the components in extremely small samples that are very difficult to be separated and purified and those which contain excess argon
本文首先從常規~ （ 40 ） ar ~ （ 39 ） ar階段升溫定年實驗室的改進入手，進而建立了激光~ （ 40 ） ar ~ （ 39 ） ar定年實驗室，利用這兩種先進同位素地質定年方法，結合其他手段，對青藏高原腹地和北緣的阿爾金斷裂系多期地質事件進行了詳細的同位素年代學研究：一、參照國際先進實驗室的流程，對我們的常規~ （ 40 ） ar ~ （ 39 ） ar階段升溫實驗室在樣品的預處理、樣品的照射條件和系統空白測量及校正等方面進行了改進，使之產出的同位素年代數據更可靠並為國際同行所承認。 -
In this paper, metastable cu - al alloy powder with different aluminum content was prepared by mechanical alloying technique. high strength and high conductivity cu - al2c > 3 composites were prepared by a new type vacuum internal oxidation technique
本文採用機械合金化法制備了不同鋁含量的亞穩態的cu - al合金粉末，採用新型真空內氧化工藝制備了不同成分的高強度高導電cu - al2o3復合材料。 -
High vacuum technique
高真空技術 -
The technique can avoid produce ti / al chemical compound in high temperature. the chemical compound would increase the difficulty of pressing. the research on vacuum degassing and temperature of pressing can acquire the ideal composite powders of highly
對ti / al復合粉進行真空脫氣及低溫熱壓制可以降低坯料中空氣含量並提高粉末顆粒的界面結合強度，同時避免高溫下生成tial基化合物增加緻密難度，對真空脫氣及壓制溫度進行研究，獲得理想的緻密度極高的復合粉末。
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