In a perfectly controlled and totally sterile environment — uncontaminated by dirt, insects or fresh air — Japanese scientists are developing a new way of growing vegetables.
Under dynamic conditions, air did not sufficiently sweep across and away from sterile connections, so the sterility of any product processed under these conditions could be compromised.
在动态环境下，空气不能充分扫过并从无菌连接处排出，因此在此条件下加工的所有药品的无菌性无法保证。
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Since the more important fermentations occur exclusively under aerobic conditions a good supply of oxygen or air (sterile) is needed.