座头鲸不像齿鲸亚目鲸或齿鲸，它们是须鲸亚目、无害的大海兽，嘴里只有须鲸板。
Unlike orca, which are odontocetes or toothed whales, humpbacks are mysticetes, harmless leviathans with only baleen plates in their mouths.
斜楔插板上的斜楔面推动废边的三角槽一侧，使板料向前运动，达到板料定位和自动送料的目。
The surface of inclined wedge pushes the triangle side of the waste and makes the plate move ahead, thus meeting the re.
目所能及的就有一百万块太阳能板了。
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