In addition, the coverage and number of carbon layers in CCA can be easily controlled by changing the sucrose content in the precursors and the impregnation times. 在这种复合材料中，碳层厚度可控制为一个石墨单层的厚度，且碳的覆盖度及层数可以通过改变浸渍的蔗糖量及浸渍次数来进行调控。
So that's more tests, more time for developers to run the test suite, and more chances of missing code coverage, especially when different modes interact. 也就是要写更多的测试，开发者要花更多的时间来运行测试套件，并且更有可能达不到代码的测试覆盖度，特别是当不同模式相互作用时。
