heart wood是什么意思

网络释义

用法例句

The FFT (fast fourier transform) algorithm and the mass center notion were used to develop a fast estimation algorithm named the Mass Center Method (MCM).

基于快速傅里叶变换 (FFT)运算和质量中心的概念 ,提出一种快速的高性能估计算法 ,称为质量中心法。

Sapwood contains xylem vessels, but not as strong as heartwood.

边材含有木质导管，但不如中心木质那样坚硬。

juvenile period

幼年期(构成中心木质部的一段时期)

Of or relating to a xylem whose early development is toward the center.

木质部的木质部或与木质部相关的，其早期发展是朝向中心的

The base, usually of soft or inferior wood, to which veneer woods are glued.

心板通常柔软或劣质的木板的中心板在它上面粘上胶合木片

Study on Performance Management for the Civil Engineering Quality Testing Laboratories;

某土木工程质量检测中心绩效管理研究

Multi-center Investigation of Quality of Life of Patients with Hemodialysis in Urumqi Area

乌鲁木齐市血液透析患者生存质量多中心调查

centre plate oak block

中心板橡木(垫)块

A tropical American tree(Ocotea rodioei)having dark, greenish, durable wood.

绿心奥寇梯木一种产于热带美洲的树木（奥寇梯木属绿心奥寇梯木），木色黑绿，木质坚硬

The Relationship between Wood Core Temperature and Environmental Measuring Parameters in Heat Treatment of Wood Packing Materials;

木质包装热处理中心温度与可测环境参数的相关性研究

Centrifugal xylem differentiates from the center outwards, and a centrifugal inflorescence (e.g. the dichasial cyme ) is one in which the progression of flower opening is from the center to the periphery.

离心式的木质部分化是从中间开始的，离心式的花序中花开放的顺序是从中央到周围。

A canoe made by hollowing out a tree trunk;a dugout.

独木舟将树干中心挖空制成的独木舟；独木舟

Slop has woods and woods have limbs. Enamored with Prince but Prince ignorst.

山中有木兮木有枝，心悦君兮君不知。

Research on extraction of pine wood lignin with organic solvent

有机溶剂法提取松木木屑中木质素的研究

Haplostele A type of protostele having a solid strand of stele with the xylem on the inside encircled by phloem, pericycle, and endodermis.

单中柱：原生中柱的一种类型，是由韧皮部、中柱鞘和内皮层包围着内方的木质部构成的实心中柱。

The soft, spongelike, central cylinder of the stems of most flowering plants, composed mainly of parenchyma.

（木）髓许多生花植物树干中心部位中的软似海绵的物质，主要由薄壁组织构成

People in economic circles pointed out that the rich oil gas resources in the Chaidamu Basin would lay a good material foundation for shifting China's energy industry center to the west.

经济界人士指出，柴达木盆地丰富的油气资源，将为中国能源工业中心西移奠定良好的物质基

The foremost or central pin in an arrangement of bowling pins.

主柱滚木球戏木瓶的排列中最前面的或中心的木瓶

Like the markings on wood which are ingrained in the very heart of the tree,

就像木头的纹路发自于树木的中心深处，