The young trees of open-center shaped Housui pear were used as the material to study the effect of different pruning rate(light, heavy and no) on the pear tree growth, fruiting and root growth.

以开心形丰水梨幼树为试材，通过轻剪、重剪和不修剪处理对其树体生长指标、产量、根系分布度进行比较分析。

youdao

The center of the museum is open, so people can look up toward the roof or down toward the ground floor.

VOA: special.2009.04.06

but being friends with Natta, open the gate and, I thought that, I have been having meals in CJLO, in the center for Jewish life.

但是和Natta做朋友，敞开心门,恩，我曾在CJL办公室，也就是犹太生活中心就餐。

普林斯顿公开课 - 人性课程节选

Each village would have a shopping center, open spaces and homes.

VOA: special.2011.01.30

He reads Chinese military texts in translation, some published by the U.S. government's Open Source Center and some he has found himself.

WSJ: The Weekend Interview with Timothy Thomas: Why China Is Reading Your Email

Samsung Open Innovation Center, located in Palo Alto, will be a core entity to discover innovative startups in Silicon Valley, provide space, funds and effectively leverage them for innovation of Samsung's products through equity investments, acquisition and strategic partnership.

ENGADGET: Samsung expands Silicon Valley crib with 1.1 million square foot R&D center

Last year, says Marwan Muasher, the foreign minister, American Express wanted to open a software center in Amman.

FORBES: Issues & Ideas