I've tried the latter approach in Listing 6. (Note that filter takes a (t) : Booleanmethod, meaning it takes a single parameter of whatever type the array holds and returns a Boolean.)

我在清单6中采取了后一种方法(注意filter使用了一个(t)： Boolean方法，意味着使用数组持有的任意类型的参数，并返回一个Boolean)。

youdao

Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.

基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。

youdao