strain-free 中文意思是什麼
strain-free
解釋
無應變-
The blastn results show that gyn - 15 is closely related to a symbiont of anemones, s. californium, and the free - living strain, gymnodinium varians. sequence comparison show that the similarities among each part of the sequences from these three strains are all above 99 %. phylogenetic reconstruction with neighbor - joining ( nj ) method using sequences of variable regions ( v1 + v2 + v3 ) of ssu rdna indicated that gyn - 15, s. californium and g. varians form a new clade with 100 % bootstrap support
以ssurdna序列中的三個可變區（ vz + vz + v3 ）和鄰接法困eighbor一joiningmethod ， nj法）構建共生甲藻屬的系統進化樹表明， gyn一巧與5 . cal扣rnium和g . varian :在共生甲藻屬內構成一個獨立的、自檢支持百分率為100 %的子類群（ clade ） ，根據這些結果可將gyn一巧初步鑒定為屬于共生甲藻屬。 -
Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "
W12菌株對環境因子的適應性研究：無氮培養條件下，測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響，結果表明，在15 - 40下均能生長並表達固氮酶活性，其最適生長及固氮的溫度為25 - 35 ；能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮，當培養基中同時存在蔗糖和蘋果酸時，細菌生長和固氮活性最強；在偏酸和偏堿的條件下（ ph4 . 5 - 8 . 5 ）均能保持較強的生長勢和較高的固氮酶活性，並能通過調節自身代謝平衡並適應環境的酸、堿性變化，使培養液趨于中性：能耐受較高的滲透壓，培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大，當naci濃度升至2時，菌株的生長勢及固氮酶活性才有所下降：低濃度的鉸對其固氮酶活性影響不大，在0 -
The morphological, physiological, biochemical and genetic diversities between bacillus thuringiensis wild - type strain ybt - 1463 and its plasmid - free mutant bmb171 was comparatively studied. it showed that the plasmid - free mutant strain bmb171 lost the ability to form the parasporal crystal, but there was on obvious diversities were observed on the sensitivity to 10 antibiotics, the utilization of 19 carbon sources and 12 nitrogen sources, as well as the growth properties between ybt - 1463 and bmb171, whereas the electro - transformation frequencies of bmb171 were much higher than those of ybt - 1463, respectively with 5 exogenous plasmids as the donor dnas
對出發菌株ybt - 1463和其無質粒突變株bmb171的部分形態、生理生化和遺傳學特性進行的比較研究的結果表明，突變株bmb171不形成伴胞晶體，但在個體形態與菌落特徵、對紅黴素等10種抗生素的敏感性、對葡萄糖等19種碳源和谷氨酸等12種氮源的利用能力及生長性能與出發菌株ybt - 1463無明顯差異。 -
The use of high grade steel, the welded cover over the strain gauge measuring elements and the glass bushing for the cable connection allow trouble free use even in harsh environments
採用高等級鋼製成應變測量元件有焊接的表面且連接電纜外有玻璃套管，這些使它完全能夠在惡劣環境下的無故障使用。 -
The recombinant plasmids pbmb121l, pbmb9821l and pbmb986l were constructed after transferring bacillus thuringiensis icps gene crylaal, crylaclo and crylca from their original plasmid vectors to different plasmid vector. the relevant recombinant strains were obtained after introducing the 3 recombinant plasmids into bacillus thuringiensis plasmid - free mutant strain 8mb 171 by electroporation. the transformation and expression properties of 8mb 171 were studied
通過將蘇雲金芽胞桿菌殺蟲晶體蛋白基因cry1aal 、 cry1ac10和cry1ca轉移至不同質粒載體上，分別構建了重組質粒pbmb121l 、 pbmb9821l和pbmb986l ，並分別導入無質粒突變株bmb171 ，篩選得到攜帶相應icps基因的重組菌株。 -
The formation of a new set of strain - free grains within a previously cold - worked material ; normally an annealing heat treatment is necessary
在冷塑性變形材料的內部生成等軸狀新晶粒的過程叫再結晶，通常發生於再結晶退火熱處理過程中。 -
Influence of texture on residual strain in cvd free standing diamond films
自支撐金剛石薄膜殘余應變的影響 -
Strain free lattice
無應變點陣 -
In nitrogen - free medium, the logarithmic phase of the strain w12 was about 13 - 48 h. in logarithmic period its doubling time was 2 - 4 h in nitrogen - free medium, 0. 9 - lh when enough nk
在無氮培養基上該菌在13h后進入對數生長期，並持續至48 52h ，這期間其生長代時為2 - 4h ，有氮培養基上為0 . 9 - 1h 。 -
" do you know, villefort, that you are talking in a most dreadfully revolutionary strain ? but i excuse it, it is impossible to expect the son of a girondin to be free from a small spice of the old leaven.
「你知道不知道，維爾福，你滿口都是革命黨那種可怕的強辯，這一點我倒可以原諒，一個吉倫黨徒世紀法國資產階級革命時期，代表大工商業資產階級的政黨，年後轉向反對革命。 -
A successful cell strain for biopharmaceutical production must conform to the following characteristics : the cells could produce high level of recombinant proteins ; the cell should be adapted to serum - free or protein - free medium ; the cells should be resistant to adverse culture conditions, which means the cells should have some anti - apoptosis property ; if not cultured i n suspension, the cells should also be able to grow in adherence
一株成功的工程細胞除了要求目的蛋白的表達量高外，還必須適應無血清培養基培養；必須具有對不利環境的抵抗能力，即抗凋亡能力；對于非直接懸浮培養的細胞，還必須具備在無血清培養條件下的貼壁能力。
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