回转中心;粒子的导向中心

centre of gyration的用法和样例：

例句

The Center of rotation located in trifurcation area.牙旋转中心位于三牙根分叉下方附近。

广州金太阳四年级下--MODULE 2-4

MODULE 2 ACTIVITIES\n [au:]第二模块活动\n [00:04.19]UNIT 4 Hobbies\n [au:]第四单元业余爱好\n [00:08.26]Dialogue\n [au:]对话\n [00:10.83]1 Look and listen.Then read and act in groups.\n [au:]1 看一看，听一听。然后分组阅读

发表于:2018-12-13 / 阅读(162) / 评论(0)

清华大学版小学英语(一到六年级)

新目标初中英语七年级下--Unit 9 It's raining!

Unit 9 It's raining! ECTION A Activity 1b. [00:07.44]Listen and write these city names in the boxes above. [00:58.85]Activity 2a.Listen.Number[1-4]the pictures as you hear them. [01:50.86]Activity 2b.Listen again.Match the names with the activities.

发表于:2018-12-13 / 阅读(185) / 评论(0)

新目标初中英语七年级

北京小学英语第五册6

[00:21.73]Visitor:Excuse me. Where can I buy a road map? [00:44.38]Xiao Min:In the post office or a book store [00:48.85]Visitor:How can I get to the nearest post office? [00:51.72]Xiao Min:Go down this road, [00:53.84]turn left at the first crossing

发表于:2019-01-09 / 阅读(113) / 评论(0)

小学英语北京版

新西兰英语 122 Outdoor Pursuits Centre Fined by Court

Yesterday the Sir Edmund Hillary Outdoor Pursuits Centre (OPC) was fined by a court for unsafe practices which caused the death of seven people last year. See January 22nd 2009 Six students and a teacher from Elim Christian College were killed while

发表于:2019-02-04 / 阅读(71) / 评论(0)

新西兰英语

新西兰英语 95 Guilty plea from Outdoor Education Centre

On April 15th 2008, New Zealand experienced a terrible tragedy: 6 teenagers and a teacher died while on an outdoor education activity in the centre of the North Island. (See April 17th 2008 on this website.) They were canyoning in the Mangatepopo Gor

发表于:2019-02-18 / 阅读(44) / 评论(0)

新西兰英语

英语听力—环球英语 1118 Neema - A Centre of Hope

Voice 1 Welcome to Spotlight. I'm Mike Procter. Voice 2 And I'm Nick Page. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Hezron thinks it is fun to race

发表于:2019-02-21 / 阅读(62) / 评论(0)

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学英语单词

amplitude ratio of 2T sine squared pulse and bar

applied mathematical modelling

art vellum

atomic force mocroscope (afm)

azoospermatisn

Ban Nong Panha

be on one's best behaviour