In this paper the writer tries to integrate the design of asynchronos counters of arbitrary carrysystem with the design of combinational logic circuits in concept and method.
本文试图把时序逻辑电路和组合逻辑电路的设计，在概念上和方法上统一起来。
2
Heavy haulers are especially good testbeds because they're large enough to carry the pumps and tanks the system needs to run.
重型货车是特别不错的实验台，因为这些车辆能携带系统需要运行的汽油加油泵和油箱。
3
Therapies that suppress the immune systemcarry the risk of letting infections and even tumors go unchecked.