sieve elements 中文意思是什麼
sieve elements
解釋
篩管成分-
Cyclosis ( cytoplasmic streaming ) the streaming of cytoplasm in a circular motion around the cell observed in some plants, particularly young sieve tube elements
胞質環流（胞質運動） ：在一些植物細胞特別是在幼篩管分子中觀察到的細胞質圍繞細胞的環形流動的現象。 -
A complex branched carbohydrate commonly associated with sieve areas of sieve elements
胼胝質一種枝條繁雜的碳水化合物，與篩網原素的篩網區域相配合 -
By making use of two kinds of exponential sums and cohen ' s sieve, we better the lower bound concerning the number of primitive elements and also prove the existence of primitive polynomials with a1, a2 prescribed when n = 5, 6. in the remaining of the paper we study primitive elements in the form of a + a - 1 over finite fields. a counting formula is given as a result, as well as all the finite fields that do not have such elements
本文對n = 5 ， 6兩種情形，利用有限域上的兩類特徵和估計及cohen篩法[ 5 ] [ 7 ] ，改進了[ 10 ] [ 11 ]中關于方程組本原元解個數的下界，並得到在特徵為奇的有限域上存在可預先指定前兩項系數的n次本原多項式。 -
In autograft from inflorescence stems callus tissue was found 4 days after grafting. no xylem and sieve elements were differentiated in both scion and stock in this period
C24擬南芥花序軸自體嫁接后4d ，嫁接面處愈傷組織開始形成，嫁接體雙方還沒有分化出管狀分子和篩分子。 -
In autograft of arabidopsis thaliana ( columbia24 ecotype ) grafted in the position of hypocotyls, wound xylem and sieve elements were differentiated in the tissues both of scion and stock 4 days after grafting
C24擬南芥下胚軸自體嫁接后4d ，在接穗和砧木中就已有管狀分子和篩分子的分化。
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