coal sample for sizetest and float-and-sink analysis

例句：

1. 1. The engineer conducted asizetest on the new machine before itwas put into use.
   工程师在机器投入使用前进行了尺寸测试。
2. 2. During the design phase, we conducted several sizetests to ensurethe product meets all specifications.
   在设计阶段，我们进行了几次尺寸测试，以确保产品符合所有规格。
3. 3. The sizetest resultsshowed that the machine's dimensions werewithin the acceptable range.
   尺寸测试结果显示，机器的尺寸在可接受范围内。
4. 1. The companyconducted a float-and-sinkanalysis to determine the optimal location for theirnew factory.
   公司进行了浮沉分析，以确定其新工厂的最佳位置。
5. 2. Thefloat-and-sink analysis revealedthat the material had excellent resistance to corrosion.
   浮沉分析显示，该材料具有极好的抗腐蚀性能。
6. 3. The float-and-sink analysis helped usidentify the most efficient way to transport theheavy materials.
   浮沉分析帮助我们确定了最高效的运输重物的方法。