However, Guang a has disadvantages as well as advantages in the utilization of heterosis because of its low lint percentage in parent propagation and hybrid seed production.
但因光a纯合态的低衣分，其亲本繁殖和杂交制种时皮棉产量降低，故光a不育系在杂种优势中的利用有优势又有劣势。
The affinity of self-incompatibility in the mustard family affects the purity of hybrid seed and the propagation coefficient of stock plant.
十字花科自交不亲和性的大小关系到杂交制种的纯度和原种的繁殖系数。
When hybrid coded video with motion compensated prediction (MCP) is transmitted over unreliable channels there exists the annoying problem of error propagation.
视频信号在基于运动补偿预测的混合编码后，在不可靠信道中传输时会遇到严重的误码传播问题。
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