...the incredible beauty and symmetry of a snowflake...雪花难以置信的美丽和对称Dr Hallett is one of a small band of latter - day snowflake researchers.哈来特博士是现在雪花研究者中的一员.Snowflake: This ia an activity the whole family can enjoy toget...
Can you feel a snowflake's dancing in the air?你能感觉到雪花的漫天飞舞吗？Snowflake: This ia an activity the whole family can enjoy together!剪纸花: 丰富的纸花样式与电子剪刀赋予传统的剪纸艺术新生命!Dr Hallett is one of a small band of latter - day snowflak...
在特殊的酸催化中, 不离解的酸不起作用.In specific acid catalysis, the undissociated acids do not contribute.所有的原子和分子系统都受光致电离和光致离解的影响.All the atomic and molecular systems are subject to photoionization and photodissociation.后者是由二氧杂环戊烷中活化较弱...
He was a tall, stout man with gray hair.他是个又高又胖、头发灰白的男子。The invasion was held up by unexpectedly stout resistance.入侵行动因遭遇到了出乎意料的顽强抵抗而受阻。Jacobs was a stout, florid man.雅各布斯身材结实，脸色红润。...