un. 仪表的校准
[网络] 仪器的率定；仪表校准

英文儿童歌曲:Ali Baba's Farm

Ali Baba's Farm Ali Ba-ba, he has a little farm. On his farm he has some little lambs. Baa, Baa cry his little lambs. On the farm of Ali Ba-ba. Ali Ba-ba, he has a little farm. On his farm he has some little cows. Moo, Moo cry his little cows. On the

发表于:2018-12-13 / 阅读(66) / 评论(0)

优美儿童英语歌曲

英语歌曲:all baba’s farm

Allbabasfarm Alibaba,hehasalittlefarm, Ohhisfarmhehassomelittlelambs, baa,baa,cryhislittlelambs, Onthefarmofalibaba, cows ducks Pigs roosters

发表于:2019-01-10 / 阅读(87) / 评论(0)

Wee Sing In The Car

VOA慢速英语2009年-Agriculture Report - Little Lambs Eat Ivy

This is the VOA Special English Agriculture Report. Growers around the world are using new methods to grow grapes to make wine. These include natural and organic methods to control harmful insects and weeds instead of using chemicals. Now, a winery

发表于:2019-01-11 / 阅读(67) / 评论(0)

VOA慢速英语2009年（七）月

美国国家公共电台 NPR Filmmaker Jonathan Demme, Director Of 'Silence Of The Lambs,' Dies At 73

AUDIE CORNISH, HOST: Jonathan Demme, who directed The Silence Of The Lambs, Philadelphia and many other movies and documentaries, died today of complications from esophageal cancer. As NPR's Neda Ulaby reports, the Oscar award-winning filmmaker passe

发表于:2019-01-17 / 阅读(38) / 评论(0)

2017年NPR美国国家公共电台4月

美国语文第一册第45期:复习

One day Nat and I sat on the high hill by the sea, where the tall lighthouse stands. 一天，奈特和我坐在海边的高山上，高高的灯塔立在那里。 We could look far out, and could see the ships at sea. 我们可以看到很远的地方

发表于:2019-02-11 / 阅读(42) / 评论(0)

美国语文第一册

英语儿歌274首第3期:Ali baba's farm

歌词如下: Ali Ba-ba,he has a little farm, On his farm he has some little lambs, Baa,Baacry his little lambs, On the farm of Ali Ba-ba. Ali Ba-ba,he has a little farm, On his farm he has some little cows, Moo,Moocry his little cows, On the farm of

发表于:2019-03-16 / 阅读(213) / 评论(0)

英语儿歌274首

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boom length to suspension height ratio

burried