前后 1.(時(shí)間接近) around; about 春節(jié)前后 around the spring festival2.(自始至終) from start to finish; from beginning to end; altogether 這篇小說(shuō)從動(dòng)筆到定稿, 前后用了一年時(shí)間。 the novel took a year to write altogether, from start to finish. 他前后來(lái)過(guò)四五次。 he has been here four or five times altogether.3.(前面和后面) front and back 受到前后圍攻 be attacked both front and back; be caught between two fires; 房子前后都是果樹(shù)。 there are fruit trees in front and at the back of the house
Temperature range : - 30 to 500c - 20 to 932f distance to spot size : 10 : 1 laser sighting : single point , offset 檢查水箱上下位的溫度檢查恒溫器水膽前后位的溫度,看看水膽有沒(méi)有開(kāi)
Methods : we retrospectively compared the measurements of lower limb alignment that were obtained with use of supine intraoperative fluoroscopy with those that were obtained with use of a full - length standing anteroposterior radiograph of the lower extremity 研究方法:本研究回顧性的對(duì)兩種方法(站立位全長(zhǎng)前后位片和仰臥位透視片)所得的下肢對(duì)線排列資料進(jìn)行對(duì)比。