在初晶相为鳞石英的平板玻璃中加入千分之几的P_2O_5后对析晶性能的影响与初晶相为硅灰石的平板玻璃是不同的。
The effect of addition of P_2O_5 in a few thousandths on the devitrification behavior of plate glass with primary phase of tridymite is different from that with primary phase of wollastonite.
那是九月初的一天，天气凉爽而又晴朗，正是赛跑的好日子。我参加了一项10.5英里的越野赛跑，才跑了最初几英里；整个赛程要穿越若干陡峭耗人体力的山坡。
It was an early September day, cool and bright and just right for running, and I was in the first few miles of a 10-mile race over a course through steep, exhausting hills.
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