t-zero n. 〔俄語(yǔ)〕【宇宙空間技術(shù)】(人造衛(wèi)星等的)發(fā)射時(shí)間。
zero n. (pl. zeros, zeroes) 1.【數(shù)學(xué)】零;零號(hào)。 2.零位;零點(diǎn),起點(diǎn);(溫度表的)零度,冰點(diǎn);座標(biāo)原點(diǎn);無(wú)。 3.最低點(diǎn);【天文學(xué)】天底;【航空】零高度。 4.沒(méi)價(jià)值的人[物]。 5.【軍事】= zero hour. the absolute zero 【物理學(xué)】絕對(duì)零度〔-273.16℃〕。 the air zero 原子彈空中爆炸中心。 fly at zero 超低空(1000英尺高度以下的)飛行。 vt. 1.把(調(diào)節(jié)器等)調(diào)整到零位。 2.把…減少到零位。 zero in 1. 調(diào)整(槍炮的)射距,把(槍炮等的標(biāo)尺)調(diào)整到標(biāo)準(zhǔn)無(wú)風(fēng)部位瞄準(zhǔn)。 2. 把(火力)對(duì)準(zhǔn)目標(biāo) (on)。 zero out 給…以免稅待遇(to zero out funding for public broadcasting 對(duì)用于公共廣播的經(jīng)費(fèi)實(shí)行免稅)。 adj. 1.零(度)的。 2.【氣象學(xué)】云幕低于50英尺,能見(jiàn)度小于165英尺的。
Liu zhijun , to achieve a speed of 160 kilometers above the speed segments and zero death on the road outside 劉志軍強(qiáng)調(diào),要實(shí)現(xiàn)時(shí)速160公里及以上提速區(qū)段路外人員零死亡。
1 . " zero deaths on construction site " : in 2005 , 25 deaths were recorded on construction sites , it is hoped that " zero deaths " would be achieved in 2008 一地盤(pán)零死亡: 2005年全港共25人因地盤(pán)意外死亡,目標(biāo)于2008年降至地盤(pán)零死亡
1 . " zero deaths in construction site " : in 2005 , 25 deaths were recorded in construction sites , it is hoped that " zero deaths " would be achieved in 2008 一地盤(pán)零死亡: 2005年全港共25人因地盤(pán)意外死亡,目標(biāo)于2008年降至地盤(pán)零死亡
In complementary case , sufficient conditions for uniform persistence and extinction of the population are obtained by the theory of uniform persistence of infinite dimensional dynamical systems . especially for the model with equal diffusion coefficients and zero death rates , the global attractivity of the unique positive steady - state solution is proved . in substitutable case , sufficient conditions for uniform persistence and extinction of population are also ob 首先考慮了具有互補(bǔ)營(yíng)養(yǎng)的擴(kuò)散模型,得到了該系統(tǒng)中種群絕滅和一致持續(xù)生存的充分條件;并對(duì)營(yíng)養(yǎng)和種群具有相同的擴(kuò)散系數(shù)和種群零死亡率的模型,證明了該系統(tǒng)存在唯一的正平衡解,并證明了該平衡解的全局吸引性。