側卵形的 的英文怎麼說
中文拼音 [zhāiluǎnxíngde]
側卵形的
英文
obovoid-
These specimens of ruppia are characterized by possessing a small oval endocarp, smooth endocarp surface, distinct narrowly elliptic external depressions, distinct apical mucro, slightly curved seed shape and conspicuous globose hilum. a new species, r. yushensis sp. nov
該新種的主要特徵為內果皮卵形、表面光滑、側面具兩個顯著的窄橢圓形凹陷、頂端具一個明顯的小尖突,以及種子頂端具顯著的球形膨大的種臍。Note the luteinized cells forming the inner cyst lining at the left, with adjacent surrounding theca cells
左側可見黃體細胞形成了囊腫的內層,包圍在旁邊的是卵泡膜細胞。During the period of provitellogenic oocytes, the nucleoli migrate to the inside of nuclear envelope, and the matter in the nucleus enters cytoplasm through nuclear pore
卵黃形成前的卵母細胞期,卵母細胞核仁移到核膜內側,核內物質通過核孔進入細胞質。The reasons of small resource are 1st, the fish eggs is lack of sticky and most spawning ground is not comfortable for spawning ; 2nd, the fish matures about 5 years old and fecundity is in low level on absolute or relative eggs amount ; 3rd, the shape is easier for catching with tall width and thin body
黑龍江魴資源量少的原因為:黑龍江魴為產弱黏性卵的魚類,對產卵場的要求較高。黑龍江魴的性成熟年齡較大( 5齡) ,而且無論是絕對懷卵量還是相對懷卵量都較低,因此生殖力較低。黑龍江魴由於體形高而側扁,極易被捕撈。分享友人