very high vacuum 中文意思是什麼
very high vacuum
解釋
極高真空-
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。 -
The quality requirement is very high on expressway soft foundation improvement compared to the super pre - loading and the jet - powder pile, the vacuum - heaped load combining pre - compression is cheaper and its intensify effect is distinct
高速公路軟基處理質量要求高，與傳統等超載預壓和粉噴樁加固軟基相比，真空堆載聯合預壓加固效果明顯，費用低。 -
This machine adopts the high quality stainless steel to make, the systematic design of the vacuum is adva nced, reliable, it is very important craft equipment in the fruit juice and food production
本機採用優質不銹鋼製造，真空系統設計先進、可靠，是果汁和食品生產中非常重要的工藝設備。 -
The speed became fast at the temperature 1050. the reaction could carry completely when billets was kept in vacuum tube for 3 hours " at 1050 temperature, under the striking of great quantity of heat when the molten iron poured into the mold, the reaction was blazed rapidly and continued at a high speed. the diffusible speed of v and c was very fast because the billet was heated over 1300 in a moment, so the reaction ca n complete in a few minutes
（ 5 ）碳化反應v + c vc在900左右開始發生，此時是固相反應，反應速度較慢，反應不能進行完全，隨溫度升高，該碳化反應的速度加快，在1050保溫3小時可以進行完全，在鑄造燒結時在過熱鐵水的巨大熱流密度沖擊下， v + c vc立即被激發，並以很快的速度進行，由於坯塊被加熱到1300以上，此時c和v擴散速度很快，因此鑄造澆注后的幾四川大學碩士學位論文分鐘內反應可以進行完全。 -
Very high vacuum
極高真空
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