球袋–为使球落袋而设置的球洞.Pocket - the holes created for the balls to be potted into.角度 – 在球袋和球之间形成的线路.Angles - the lines created to the pockets between balls....
A band of gray hair encircled his bald dome.他的秃头顶四周长着一圈灰白的头发。A band of grey hair encircled his bald dome.他的秃头四周长着一圈灰白的头发.The mountain is encircled by the doughnut - shaped depression of the caldera.山为环形的破火山口洼地环抱着.The arm...
Cellulase An enzyme that hydrolyzes 1, 4 - glycosidic linkages in cellulose, yielding cellobiose ( a disaccharide ) and glucose.一种能够水解纤维素中1, 4-糖苷键, 生成纤维二糖 ( 一种二糖 ) 和葡萄糖的酶.Only the thermosetting resins provide a strong co...