direction n. 1.方位,方向;范圍,方面。 2.〔pl.〕 指揮,指導(dǎo);管理。 3.〔常 pl.〕指示,命令,吩咐;用法說明。 4.導(dǎo)演;(樂隊(duì))指揮。 5.寄發(fā)地址。 6.趨向,傾向。 Full directions inside. 內(nèi)有詳細(xì)說明。 direction finder [detector] 【無線電】測向儀。 direction finding 定向。 direction finding station 無線電測向站。 direction for use 用法說明。 in all directions 四面八方,各方面。 (reforms) in many directions 各方面的(改革)。 in the direction of 向…方面。 take a new direction 有新傾向。 under the direction of 在…指導(dǎo)下。
Scan direction - in the flatness calculation , the direction of the subsites 掃描方向-平整度測量中,局部平面的方向。
The choice of scanning direction of multi - angle thermal infrared remote sensing 關(guān)于熱紅外多角度遙感掃描方向的選取問題
Crops sown in line ; the directional characteristics of thermal radiance ; scanning direction 行播作物熱輻射方向特性掃描方向
Some electro - optical crystals can result in birefringency when they are pressed by electric field , by controlling the intensity of the electric field , we can change the phase of the output optical beam , so the desired scanning direction can be got 它主要是利用某些電光晶體在電場的作用下,可以產(chǎn)生雙折射的原理,通過控制加在光學(xué)相控陣中各相控單元兩極間的電場強(qiáng)度,可以改變出射光的相位,從而得到所需角度的掃描。
( 3 ) there are many flaws in direct laser metal sintering , such as the high remnants stress , micro - hole and micro - crack in sintering parts . in order to solving those problems , the programming of scanning paths is put forward , and several parts are prepared with different scanning paths respectively . the following conclusion is educed : the parts produced with short - side scanning path and same scanning direction have the minimum structure , the rigidity of parts prepared by short - side and same direction scanning path is highest , and the density of parts produced with the vertical scanning path is maximal ( 3 )針對采用大功率激光直接燒結(jié)鎳基高溫合金成形金屬零件存在的問題,如較大的殘余應(yīng)力,制件中存在著微裂紋、微孔洞等缺陷,初步提出掃描路徑的規(guī)劃,并采用幾種不同的掃描方式進(jìn)行燒結(jié)試驗(yàn),發(fā)現(xiàn)采用短邊掃描路徑和同向掃描能夠獲得更加細(xì)小和分布均勻的組織結(jié)構(gòu),采用短邊同向路徑制備的試樣其顯微硬度最高,而采用變向掃描(垂直)路徑制備的試樣致密性最好。
The main results show that : ( 1 ) the mechanism of laser bending is very different from that in bending with hard tools . ( 2 ) the bending angle is varied along scanning direction , and there is a deformation wave in the process . ( 3 ) the effects of sheet length on bending can be neglected while the length is more than 10 times of thickness . ( 4 ) the sheet width has much higher influence on the bending process 分析發(fā)現(xiàn):激光彎曲成形時(shí)板料的應(yīng)力狀態(tài)與機(jī)械折彎時(shí)有根本不同;當(dāng)激光束沿直線單向掃描時(shí),板料兩端的彎曲角度不同;板料的長度大于10倍板厚或5倍光斑尺寸時(shí),板長對彎曲角度的影響不再顯著;沿掃描方向,距離光斑中心3倍光斑尺寸以外的區(qū)域,仍然對彎曲變形量產(chǎn)生影響。