The time boundary and cause of transition were analyzed and discussed.

分析、讨论了不同活动阶段的时间界限和转变原因。

youdao

Its advantages embody: the overcome of space-time boundary, convenience of data analysis, avoidance of researcher effect and easy to repeated test.

其优势体现为：跨越时空的界限、数据收集与处理的便捷、避免研究者效应和容易实现可重复性的验证研究等。

youdao

The plumes apparently originate at great depths, perhaps as deep as the boundary between the core and the mantle, and many have been active for a very long time.

这些地幔柱显然起源于很深的地方，可能深至地核和地幔之间的边界，而且许多都已经活跃了很长时间。

youdao

I mean a blanket term, a guiding concept, a transcendental signified, something that explains the nature of the structure and something also, as Derrida says, which allows for limited free play within the structure; but at the same time the structure has this kind of boundary nature.

是一个概括性称呼，一个引领概念，一个超验所指，它解释了这个结构的内涵，正如德里达所说，它允许在结构内有限的自由游戏;,但同时这个结构也有限性。

耶鲁公开课 - 文学理论导论课程节选

But he could also note that the commission's proposed solution would require time-consuming boundary changes and could not anyway be implemented until after the next election, thereby signalling that the promised referendum could safely wait until just before or just after that election.

ECONOMIST: The Jenkins recipe

Four, it follows an established set of parameters and rules, and requires some artificial boundary of time and space.

NEWYORKER: Master of Play

Once upon a time the Lib Dems supported boundary changes.

BBC: Seats dispute goes beyond a boundary