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Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

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Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacter

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学英语单词

accuracy limit

adenomatous polyposis coli

automatic egg breaking and separating machine

autorefractive

Bacillus diphtheriae columbarum

ball-and-socket hinge

broadside on berthing