美[sit] 1 . Teachers staged a sit -down protest in front of the president's office.
老師們?cè)谛ｉL(zhǎng)辦公室門前舉行了一場(chǎng)靜坐抗議。
來(lái)自柯林斯例句
2 . Let's sit down and then you can say what's up.
咱們先坐下來(lái)，然后你把事情告訴我。
來(lái)自柯林斯例句
3 . We can't just sit by and watch you throw your life away.
我們不能眼睜睜地看著你毀掉自己的生活。
來(lái)自柯林斯例句
4 . Now sit down and make yourself comfortable. You must be very tired.
現(xiàn)在坐下來(lái)，讓自己舒服些，你一定很累了。
來(lái)自柯林斯例句
5 . I've asked Mum to sit for us next Saturday.
我已經(jīng)拜托媽媽下周六為我們臨時(shí)照看一下孩子。
來(lái)自柯林斯例句
1.be seated
2.sit around, often unused;
The object sat in the corner
3.take a seat
4.be in session;
When does the court of law sit?
5.assume a posture as for artistic purposes;
We don't know the woman who posed for Leonardo so often
6.sit and travel on the back of animal, usually while controlling its motions;
She never sat a horse!
7.work or act as a baby-sitter;
I cannot baby-sit tonight; I have too much homework to do
8.show to a seat; assign a seat for;
The host seated me next to Mrs. Smith
靜態(tài)感應(yīng)晶體管SIT 靜態(tài)感應(yīng)晶體管SIT(StaticSIT Induction Transistor)誕生于1970年，實(shí)際上是一種結(jié)型場(chǎng)效應(yīng)晶體管。將用于信息處理的小功率SIT器件的橫向?qū)щ娊Y(jié)構(gòu)改為垂直導(dǎo)電結(jié)構(gòu)，即可制成大功率的SIT器件。SIT是一種多子導(dǎo)電的器件，其工作頻率與電力MOSFET相當(dāng)，甚至超過電力MOSFET，而功率容量也比電力MOSFET大，因而適用于高頻大功率場(chǎng)合，目前已在雷達(dá)通信設(shè)備、超聲波功率放大、脈沖功率放大和高頻感應(yīng)加熱等某些專業(yè)
