plankn.厚板；支撑物；政纲条目vt.铺板；用力放下；<口>立即付钱Planktosphaeria gelatinosan.浮球藻plank road alongside cliffs栈道plank chain trolley machine板链推车机Plank type belt conveyer net板式输送带网plank locus Chebyshev method黑体轨迹的Chebyshev法Planktothricoides raciborskii拉氏拟浮丝藻Planks considered as a group.厚板材的总称plank locus arc simulating method模拟黑体轨迹弧线法planktic foraminifera biostratigraphy浮游有孔虫生物地层学