查询词典 stems

A large lacuna occupies the center of many stems.

有些植物茎的中央有大型的空腔存在。2。

One of CIRM's aims," says Laird,"is to culture and differentiate embryonic stems cells ?cells that would then be placed into patients.

CIRM的目标之一" Laird说，"是培养和分化胚胎干细胞，然后把这些细胞放入患者体内。

Any of several very tall, late-blooming tulips bearing large squarish flowers on sturdy stems.

几种非常高大、开花晚的郁金香的任何一种，在强壮的茎干上结巨大的近似方形的花。

It is made from latex, a white liquid found in the stems and leaves of many plants.

它是从植物乳汁——许多植物的茎和叶中含的一种白色液体——中提取出来的。

Summer heat, has been out of bud and leaf stems.

夏日炎炎，芽已抽出茎和叶。

By contrast with the WPPM, the other treatments, especially the straw mulching, both of the root and the leafage can not get sufficient growth before July because of the low temperature, and after then, there was plentiful rainfall, so the leafage and stems still accumulated the assimilation products that should be distributed to ear. that led to the reductions of their economic outputs.The yield of maize covered with WPPM was the highest.

秸秆覆盖和露地的玉米在整个生育期内，尤其是秸秆覆盖，出现了各器官生长发育紊乱(如根系、根叶组等生长不充分和茎、穗叶组等过剩生长)的现象，导致了生育后期茎叶与穗争夺有限的光合产物，干物质积累不适时、分配不合理和最终经济产量的降低。

Stems 1 to several, 1- or 2- or several leaved, rarely leafless.

茎1到数个，1或2-叶，很少无叶的或数个。

Stems erect or ascending, simple or branched, leafy or rarely leafless.

茎直立或上升，单一或分枝，多叶的或很少无叶。

Any of various plants of the genus Stapelia having succulent leafless toothed cactus-like stems and large evil-smelling flowers often star-shaped.

任何属于五角星花属的植物，有肉质无叶有齿的仙人掌状的茎干和星形的恶臭的大花。

Result The results indicated that, the calli development rate from leaves inducement was lower than that from leafstalk and young stems.

以葡萄叶为外植体时，诱导的愈伤组织出愈率很低；以叶柄和茎为外植体时，愈伤组织的出愈率均较高。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷