The utility model is characterized in that the utility model is a balance with unequal arms, and the lever edge of the utility model is arranged on an object which can be fixedly arranged on the workbench.
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This book is printed-on-demand. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks or lines, etc, that were either part of the original artifact, or were introduced by the reproduction scanning process.
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Ways to compare Saybolt and Engler readings for consistency.
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The utility model is characterized in that the utility model is a balance with unequal arms, and the lever edge of the utility model is arranged on an object which can be fixedly arranged on the workbench.
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