根

Contractile root A specialized root developed by certain bulb-and corm-forming plants that serve to pull the bulb or corm down to the appropriate depth in the soil, e.g.

收缩根：在某些具有形成鳞茎或球茎的植物中特化的根结构。

It's a simple device—two boards and a nail on which to impale a corncob.

这个装置很简单，用两片板子及一根钉子组成，钉子上穿根玉米棒。

I mean, count it down like so, starting with your thumb first.

我是说这样，从拇指开始一根一根往下数

If the same two single are plied into a double by twisting 100 tpm in the Z direction, the counterclockwise twist will tend to unwrap the single yarns and the internal torque of the single yarns will be reduced to 100 in the S direction.

如果给相同的两根单纱加上Z方向上100tpm的捻度使它们合成一股时，逆时针方向的加捻则会使单根纱线易于解开，使其在S捻向上的内部扭转力降到100。

Not standing my son's suasion by all means, finally we bought him this crabstick. He put it on his shoulder all the way and accepted much admiration for the crabstick and the boy who hold it.

经不住儿子的软磨硬泡，我们终于给他买下了这根桃木棍，儿子一路上扛着它，接受了不少爬山人对这根木棍和扛木棍的男孩的赞赏。

A new spectrophotometric method for the determination of trace nitrite was studied.The method is based on the diazo-reaction of brilliant cresol blue with nitrite.

本文研究了在盐酸介质中微量亚硝酸根与煌焦油蓝发生的重氮化反应，建立了测量微量亚硝酸根的新方法。

In the medium of H2SO4 with KBr as the catalyst, the color of Cresol Red oxidized by iodate can be faded, and the degree of color fading is proportional to the concentration of iodine and the linear range of determination is 20 μg/25 mL~50 μg/25 mL.

在硫酸介质中、在溴化钾催化条件下，碘酸根对甲酚红有褪色作用，且褪色的程度与碘酸根的量有关，碘定量测定的线性范围为20μg/25mL～50μg/25mL，检出限为6。

And here some indistinct recollections of the black though ingenious Cromwellian thief Sir William Petty and his double-bottomed vessel were driven clear out of his mind, for lashed to the starboard stem was a carving some six feet high, a very lively carving of three men: the first had the second standing on his shoulders and the second the third; and these three were connected by the huge penis which rose from the loins of the first, towering past the second to a point above the third man's head and held by all three as it mounted.

这时候，他再也不去回想那个聪敏的、克伦威尔式的黑人盗贼威廉。佩迪爵士了，也不去回想他模糊记得的、佩迪的双底大船了，这是因为，他看见了绑在右舷艏柱上六英尺长的非常生动的木雕，上面雕了三个男人：第二个男人站在第一个的肩头，第三个则站在第二个的肩头；而这三个男人被一根巨大的阴茎连接在一起，这根阴茎从第一个男人的腿间升起，越过第二个男人，一直升到第三个的头顶，三个人都扶着它。

Gingers seldom flowers and have seeds, so it is difficult to cultivate new variety through crossbreeding.

蔗糖比葡萄糖更利于根状茎的诱导，活性炭对根状茎诱导没有明显作用。

One of a pair of horizontal beams set into a masthead to support the crosstrees.

桅杆纵桁两根插入桅顶的水平梁子中的任何一根，用于支撑桅杆横顶

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。