In a bid to overcome the drawbacks of existing biofuels, researchers have engineered a bacterium that can convert a form of raw plant biomass directly into clean, road-ready diesel.
为了克服现有生物燃料减少所带来的威胁，科研人员已经构建了一种能够将天然植物生物量直接转变为清洁的柴油的工程菌，而他们产生的柴油可供车辆直接使用。
As potassium levels decline, a membrane protein on the bacterium stimulates a cascade of gene activity that signals neighboring cells to form a quorum.
如钾水平下降，膜蛋白在细菌刺激一连串的基因活性的子细胞信号形成的人数。
Subsequently, the blood will form a barrier to prevent invasion of other bacterium.
随后，血液就会形成一道屏障，阻止其他细菌入侵。
The protein sheath that coats each invading bacterium cell is remarkably similar to the one that coats the native cells that form a particular part of the body.
那些包裹入侵细菌的蛋白鞘与身体的特定部分的原生细胞表面的蛋白是如此相似。
Paul Davies of NASA and Arizona State said the bacterium is not a new life form.
美国航天局和保罗·戴维斯说，美国亚利桑那州立细菌不是一个新的生命形式。
This form of adaptation is a tactic that other harmful organisms use to ensure their survival: every time a virus or bacterium kills its host, it reduces its chance of replicating.
每当一种病毒或者细菌杀死了它的宿主，它就减少了自己繁殖的机会。
Methods Adopt specially designed investigation form, random samples according to GB4789.1-94 and GB4789.2-94, determining the total of bacterium and coli form.
方法采用统一设计的调查表格，按照国家标准GB4789.1- 94和GB4789.2 - 94检验方法随机抽样进行菌落总数和大肠杆菌测定。
Methods Adopt specially designed investigation form, random samples according to GB4789.1-94 and GB4789.2-94, determining the total of bacterium and coli form.
方法采用统一设计的调查表格，按照国家标准GB4789.1- 94和GB4789.2 - 94检验方法随机抽样进行菌落总数和大肠杆菌测定。
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