请帮我看看这个翻译正确吗？

帮我看看“Break”和“Long exposure photo of the break in eight-ball”部分翻译正确吗？ 另外BCA是什么意思阿？
BCA Official Billiards Rules & Regulations

Break
One person is chosen (by a predetermined method, e.g., coin flip, win or loss of previous game, lag) to shoot first and break the object ball rack apart. If the shooter who breaks fails to make a legal break (usually defined as at least four balls hitting cushions or an object ball being pocketed), then the opponent can demand a re-rack and become the breaker, or elect to play from the current position of the balls.
开球
一人先开球（可用预定的方法决定开球权，比如掷硬币，上场比赛的胜负者，或是以击母球的方式决定先后次序：即在成功地击中母球底边并使其从台球桌底边上弹回后，以最靠近顶边的球的击打者为先击者），把三角形目标球阵打散。如果开球后至少有主球跳离台面或一个目标球入袋，即认为开球犯规，对方选手就可要求把球重新放入框中，变成开球手，或是选择根据当下球的位置自由击球，即获得自由击球权。

Long exposure photo of the break in eight-ball.
If the breaker pockets a ball, it is still that player's turn and the table is considered "open" (meaning the breaker can still make any object ball to determine if he/she will only shoot solids or stripes throughout the game). If the breaker fails to make another ball after the break, the table is still considered "open" until someone legally pockets a ball.
According to World Standardized Rules, if the 8 ball is pocketed on the break, breaker may ask for a re-rack or have the 8 ball spotted and continue shooting. If the breaker scratches while pocketing the 8 ball on the break, the incoming player has the option of a re-rack or having the 8 ball spotted and begin shooting with ball-in-hand behind the head string.
For regional variations, see below.
关于开球使8号球入袋

如果击球手把球击入袋，则该名选手得以继续打球且此时是开放球局(开放球局意指当该局球之大、小花色打击权尚未决定。) 如果开球手开球后没能击球入袋，在对手合法地击球入袋前仍认为是开放球局。

根据世界标准化规则，如果开球时8号球被击入袋，则开球手可以要求重新排球或是把8号球取出重置于脚点上，并继续出杆。但若开球后8号球及母球同时落入球袋，则其对手可要求重新排球或将8号球取出重置于脚点上，并将母球置于发球线后依台面上的情况继续出杆。

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