The shortcoming of hard switch is that the power loss of power devices increases with the switching frequency, which is no good for system integration and improvement of conversion efficiency.

在硬开关状态下，PWM功率变换器的致命弱点是开关管开关损耗随开关频率成正比增加，不利于系统的集成和转换效率的提高。

youdao

This makes it very hard for a programmer to switch between enterprise and startup companies.

这也使得程序员很难在大企业和创业公司之间转换角色。

youdao

I think it's wise to take money from investors. To be self-funding, you have to start as a consulting company, and it's hard to switch from that to a product company.

我认为明智的做法是寻找适当的投资人，因为依靠自有资金创业，你基本上只能做一个咨询类的公司，而这类型的业务很难转换成一个实业行的事业。

youdao

The device is also made out of 65% recycled plastics, and comes with a 0-watt hard switch that lets you cut power completely off from the monitor for zero power consumption.

CNN: Computer monitor uses sensor to promote better posture

Judging products is a subjective endeavor, so Dedio looks for those that are hard to switch away from once a customer tries them out.

FORBES: Pick of the Crop

The second makes it hard for you to switch projects and work on new things.

FORBES: How Do You Know When It's Time To Leave Your Current Company And Move On?