expression n. 1.表現(xiàn),表示,表達(dá)。 2.詞句;語句,措辭,說法。 3.表情,臉色,態(tài)度;腔調(diào),聲調(diào)。 4.【數(shù)學(xué)】式,符號。 5.(油的)榨出,壓榨。 6.【生物學(xué)】表現(xiàn)度。 emotional expression 表情。 a happy expression 妙言。 an odd expression 怪話。 the expression of the eye 眼睛表情,眼色。 a smiling expression 笑臉。 beyond [past] expression 形容不出,無法表達(dá)。 find expression (in) (在…中)表現(xiàn)出來…,表現(xiàn)在…。 give expression to 表達(dá),反映(give the fullest expression to their initiative 充分表現(xiàn)他們的積極性)。 expression mark 【音樂】表示感情色彩的符號。 adj. -al 表現(xiàn)的;表情的。 n. -ism 【美術(shù)】表現(xiàn)主義;表現(xiàn)派。 -ist 1.n. 【美術(shù)】表現(xiàn)主義者,表現(xiàn)派。 2. 表現(xiàn)派的〔亦作 expressionistic〕。 adj. -less 缺乏表情的,呆板的。
Analysis of reflection property of cube - corner retroreflector with vector expression 用矢量方法分析角錐棱鏡的反射特性
1 . construction of high efficiency expression vectors expression vectors are critical to high efficiency expression of foreign proteins 高效哺乳動物細(xì)胞表達(dá)載體的構(gòu)建表達(dá)載體對于外源基因的高效表達(dá)十分重要。
From a property of the triangle a vector expression is deduced with two practical corollaries . here two proofs are presented 摘要從三角形的一個性質(zhì)中得出三質(zhì)點(diǎn)質(zhì)心滿足的一個向量表達(dá)式,并得到兩個有實(shí)用價值的推論,同時對上一性質(zhì)給出兩個簡潔的證明。
In addition , we also focused on constructing a plant virus - based gene vector pvx to express ltb - st fused gene by means of agroinfection . the possibility of producing vaccine was probed through plant virus - based gene vector expression system 同時本研究還通過構(gòu)建ltb ? st融合基因pvx病毒表達(dá)載體,并用農(nóng)感染法轉(zhuǎn)化植物,探索了暫態(tài)表達(dá)系統(tǒng)生產(chǎn)疫苗的可能性。
The final results obtained in this paper contained that the optimal interpolation scheme highlighted by the covariance that the correlation between different time and the correlation between different place being considered ; that the simplification of kalman filter with the singular - value decomposition ( svd ) and the direct construction of state transition matrix pfeceded with " inverse vector expression " ; and that the analysis of t / p data and its blending with theoretical model 這些成果包括:建立考慮了時間相關(guān)的方差矩陣和時空相關(guān)的最優(yōu)插值算法;對卡爾曼濾波算法進(jìn)行了svd簡化以及建立了顯式的狀態(tài)轉(zhuǎn)移矩陣;將t p實(shí)時衛(wèi)星數(shù)據(jù)進(jìn)行調(diào)和分析并與數(shù)值模型進(jìn)行同化處理。
Based on the lorentz transformation on especial condition , making use of coordinate transformation and matrix theory , the matrix expression and vector expression of lorentz transformation about two inertial frames that relative speeds orientation is random and isnt follow axes of ordinate are educed . 2figs . , 3refs 從特殊情況下的洛侖茲變換出發(fā),利用坐標(biāo)變換和矩陣?yán)碚?,?dǎo)出了兩個慣性系的相對運(yùn)動速度取向任意,且不沿任一坐標(biāo)軸洛侖茲變換的矢量表達(dá)式和矩陣表達(dá)式.圖2 ,參5
The coordinate system of turning polyhedron movement was selected and its vector model was established by way of analyzing the vector , and based on that , the vector expression of describing turning polyhedron movement was deduced , then the vector formula of the relative movement and the vector formula of the path of the lathe tool were built 摘要通過矢量分析,選擇了車削多面體運(yùn)動的標(biāo)架,建立了車削多面體運(yùn)動的矢量模型,在此基礎(chǔ)上給出了描述車削多面體運(yùn)動的矢量表達(dá)式,建立了相對運(yùn)動的矢量公式和刀尖軌跡的矢量公式。