submarine adj. 水下的,海中的,海底的,海生的。 a submarine armour 潛水服。 a submarine boat 潛艇。 a submarine cable 海底電線。 a submarine volcano 海底火山。 n. 潛艇;海底動(dòng)物[植物];〔美國(guó)〕=hero sandwich 〔 pl. 〕 〔美俚〕腳。 an A submarine=an atomic submarine 核子潛艇。 vt. (用潛艇)擊沉,襲擊。 n. -r 潛艇兵,潛艇人員。
High precision positioning for underwater submarine is a long lasting difficult problem in the field of underwater navigation and positioning 潛艇水下高精度定位,長(zhǎng)期以來(lái)一直是水下導(dǎo)航定位領(lǐng)域的一個(gè)難題。
In order to solve this problem about high precision positioning for underwater submarine , this paper proposes a relatively practical scheme 為了解決潛艇在水下長(zhǎng)時(shí)間航行過(guò)程中的高精度定位問(wèn)題,本論文提出了一種比較實(shí)用的解決方案。
Owing to great improvement in anti - submarine technology , especially widely application of airborne anti - submarine equipment , the survivability of underwater submarine faced great threat 隨著現(xiàn)代反潛技術(shù)的快速發(fā)展,特別是航空反潛裝備的大量使用,水下潛艇的生存面臨越來(lái)越大的挑戰(zhàn)。
In this paper , a theoretical investigation of the drag reduction for underwater submarine by riblet biomimetic non - smooth surface and microbubble carried out , the prime mechanism of two drag reduction technology is open out , and provide theoretical foundation for engineering , which proved efficiency of thruster 粘性摩擦阻力在低速前進(jìn)時(shí)對(duì)航行器的阻力起主導(dǎo)作用,而在高速航行時(shí)壓差阻力是主要的,因此在設(shè)計(jì)當(dāng)中綜合考慮了兩方面因素,使表面結(jié)構(gòu)具有雙重減阻特性。