研究染色体的形态、结构，尤其是带型，是基因定位与基因图谱研究的基础工作。
The researches on chromosome shape, structure, and banding pattern are foundation of gene mapping research.
根据形态识别出平直截切型、弯曲起伏型、渐变条带型等三种类型滑动面。
There are straight intercept type, bend fluctuate type and gradation band type et al. three types of slip surface.
根据形态识别出平直截切型、弯曲起伏型、渐变条带型三种类型滑动面。
There exist three types of slip surface, i. e. , straight intercept type, curved fluctuate type and gradation band type.
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