瓶口段 的英文怎麼說
中文拼音 [píngkǒuduàn]
瓶口段
英文
pass-
The results of large - scaled culture show that 48g clone crushed by tissue disintegrator in the course of initial period and its inoculating density is 0. 35g / l, a month later, the clone departed directly and its density is 1. 5g / l, the highest density of each jar could be obtained 410g, the growth speed mostly doubled per week
大規模培養結果表明在20l廣口瓶中（有效水體15l ） ， 48g克隆在起始培養時經組織搗碎機粉碎切割，切割時間10s （細胞段長度約200um ） ，並按0 . 35g l接種，一個月後不粉碎直接分瓶，分瓶密度1 . 5g l ，一個月後最大密度410g瓶，生長速度約每周翻一番。On the present stage, the population base of our country is big, under the economical and technical level, all quite backward condition to realize the economical fast development caused originally already the short water resources to be restricts to the our country economy sustainable development " the bottleneck "
在我國現階段，人口基數大，經濟和科技水平都比較落後的條件下實現經濟的快速發展，使本來已經短缺的水資源成為制約我國經濟可持續發展的「瓶頸」 。
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