在过去，激光雷达线束偏少，扫描出的物体轮廓全靠稀疏的点阵拼凑。遇到复杂的环境，前方的障碍物反馈回来的信息，往往只是一团模糊的像素块。
Tuple projected = new Tuple(t.a * 2);
，详情可参考safew官方下载
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被拖方在起拖前和起拖当时，应当做好被拖物的拖航准备，谨慎处理，使被拖物处于适拖状态，并向承拖方如实说明被拖物的情况，按照规定提供有关检验机构签发的被拖物适合拖航的证书和有关文件。
Portuguese utility EDP CEO Miguel Stilwell de Andrade joins Bloomberg TV to discuss how the war in the Middle East is boosting demand for renewables, as countries and businesses seek to diversify their sources of energy and shield themselves from external shocks.