Typically, applications spend some of their time in user code and some in "system code," such as kernel system calls.

通常来说，应用程序在运行时既要花费一些时间来运行用户代码，也要花费一些时间来运行“系统代码”，例如内核系统调用。

youdao

This text introduced a data collecting system with MSP430 single chip as kernel.

介绍以MSP430单片机为核心的数据采集系统。

youdao

The introduced elevator communication system was specially designed for elevator control system in which PLC is used as kernel controller.

介绍了一个专门为以PLC为核心控制器的电梯控制系统而设计开发的电梯通信系统。

youdao

We took that as a kernel of an idea and validated it in all our key markets.

FORBES: Pepsi's Brad Jakeman And Simon Lowden Explain Rationale Behind New 'Live For Now' Global Campaign

Many recipients of government research funding simply used the money to conduct their experiments and move on, but some, like Wu, saw the cash as the kernel of a business.

NEWYORKER: Green Giant

Linaro engineers, leveraging their extensive embedded knowledge, will contribute to a wide range of open source projects covering areas such as tools, kernel, graphics and boot code.

ENGADGET: ARM, Samsung, IBM, Freescale, TI and more join to form Linaro, speed rollout of Linux-based devices