There was cis-trans isomerism on the system of SSBR/S/NS and the degree of cis-trans isomerism.

SSBR/S/NS 体系存在顺反异构现象，顺反异构程度也存在。

youdao

Notice that in Cocoa, core classes usually have the NS prefix; this stands for NextStep, the operating system that originally introduced Objective-C.

注意，在Cocoa中，核心类通常以NS前缀开头，NS代表NextStep，这是最初引入objective - c的操作系统。

youdao

The system accomplished data acquisition over a 10th order time span, from 10 ns to 100 s.

系统实现了时间跨度为10纳秒到100 秒的10 个时间数量级的数据采样。

youdao