查询词典 soft wood

South American evergreen tree yielding winter's bark and a light soft wood similar to basswood.

南美的一种常绿木，生产温特树皮和一种轻软木材，略象椴木。

Some sneezing and nasal discharges are merely allergic reactions that can be caused by soft wood beddings or dusty hay.

有时候打喷嚏和流鼻涕仅仅是过敏，是由于木屑垫料或者干草上的灰尘所引起。

With regard to the practical problems of estimating product quality on-line in hydrocracking fractionator, the soft-sensing engineering implementation strategy, which combines several soft sensors by weights for product quality estimating, is proposed to improve robustness of on-line estimation.

运用此控制策略对Shell公司重油常压塔和Wood-Berry精馏塔进行了仿真研究，通过与直接针对实际对象的基于RNNARX模型的多变量约束预测控制策略的仿真结果相比较，显示了PLS-MPC控制策略的有效性。

The effect of hemi-cellulose content on fiber horrification and paper performance in recycling is studied concerning soda-AQ reed pulp, SP reed pulp and KP soft wood pulp.

研究了烧碱蒽醌法苇浆、碱性亚钠法苇浆、KP法针叶木浆在回用过程中纤维保水值、纤维聚戊糖含量以及成纸性能的变化，结果表明纸浆在回用中打浆前后聚戊糖含量稍有下降，而保水值增加；随着回用次数的增加，聚戊糖含量变化不大，但保水值却大幅度下降；成纸性能在回用中逐渐下降，而光学性能则向良好的方向发展。

According to the root type division the Chinese Dwarf cherry belongs to the inductive type of root primitive body,From above several aspects we can see that the mechanism of soft-wood cutting is : Under the condition of without root primordium ,the root primordium appear from cambium by using rooting accelerator under the condition of well temperature ,humidity ,and light, then the root primordium breaks through the cerebral cortex, finally extends to outside .

从以上几个方面我们可以看出，欧李嫩枝扦插生根繁殖的机理为：欧李嫩枝在无根原体存在的情况下，经过生根剂的处理在合理的温度、湿度及光照条件下，由其形成层部位产生根原体，随后根原体突破皮层，伸向外部。

Pale soft wood of a tupelo tree especially the water gum.

灰色软质的紫树木料，尤指水紫树。

Small semi-evergreen broad-spreading tree of eastern South Africa with orange-scarlet flowers and small coral-red seeds; yields a light soft wood used for fence posts or shingles.

一种广泛分布在南非东部的小而半常绿的树，花猩红色，种子小，呈珊瑚红色，；木质轻软，用作篱笆木或盖屋板。

Small semi-evergreen broad-spreading tree of eastern South Africa with orange-scarlet flowers and small coral-red seeds; yields a light soft wood used for fence posts or shingles.

一种广泛分布在南非东部的小而半常绿的树，花猩红色，种子小，呈珊瑚红色，；木质轻软，用作篱笆木或盖屋板。小钉，小栓

Like cedar, pine is a soft wood whose oils give it an aromatic scent.

和香柏树一样，松树是一种软木，它的树油也有芳香的气味。

British Columbia Douglas Fir is a soft wood with an extremely fine and straight grain pattern.

不列颠哥伦比亚省道格拉斯冷杉是一种软木，木质极为细致和直的纹理图案。

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。