open ball

基本解釋

When the line pressure to atmospheric pressure, open the ball tube, check pigging or caliper effect.
當(dāng)管線內(nèi)壓力降到大氣壓力時(shí)，打開收球筒，檢查清管或測徑效果。
During coffee, host Bern will open the ball by dancing a Strauss waltz with the youngest girl present.
茶點(diǎn)時(shí)間，主持人將與全場最年輕的女孩跳一曲華爾茲作為舞會(huì)的開場。
The next day, my mother with a knife to carefully cut open the ball daffodils, and a Peach of the "Narcissus Doll" was born.
次日，媽媽用刀小心地把水仙球剖開了，一個(gè)桃形的“水仙娃娃”誕生了。

The bottom of the root ball will look something like the spread-open wings of a butterfly.
All you need is a ball and open space.