clonal propagation

例句：

1. 1. Clonal propagation is a method of producing offspring without sexual reproduction.
   克隆繁殖是一种通过无性繁殖产生后代的方法。
2. 2. In clonal propagation, genetic diversity is maintained by the ability to clone and reproduce identical plants.
   在克隆繁殖中，通过能够克隆和复制相同植物的能力来维持遗传多样性。
3. 3. Clonal propagation has been used in agriculture for decades to produce large quantities of crops.
   几十年来，克隆繁殖已被用于农业，以生产大量作物。