树干

这树干里面是空的。

The tree trunk was hollow inside .

这根图腾柱是由一整根树干雕刻而成的。

This totem pole was carved from a single tree trunk .

暴风雨把一根树枝从树干上刮了下来。

The storm split a branch off from the main trunk .

在树干上切一道大约半英寸长的口子。

Make a slit in the stem about half an inch long .

在倒下的树干上长出的伞菌

toadstools growing on fallen tree trunks .

一些人不得不紧紧抱住树干，因为湍急的洪水会把他们冲倒。

Some people had to cling to trees as the flash flood bowled them over .

小虫子钻进了树干里。

The grubs tunnelled into the trunk .

树干上有个大包。

There is a big protuberance on the trunk .

攀缘植物盘绕着树干。

The climbing plant curled round the trunk of the tree .

我们按他在树干上做的记号往前走。

We followed the marks he had made on the tree trunks .

一棵树的枝丫长自树干。

Branches of a tree grow from the trunk .

那棵倒下的枯树中长出一棵新树干。

There is a new trunk growing out of the fallen dead tree .

地衣附着在岩石、树干上。

Lichens adhere to rocks and tree trunks .

在那里,我坐在树荫下,靠着它结实的树干看书、吃糖、喝橙汁。

There , sitting in the shade against its strong trunk , I read my books , ate my candy and drank my orange juice .

它们的前爪还可以用来打洞和拖拽较重的树干

The forepaws are also used for burrowing and for dragging heavier logs .

而今天，重建工作取决于树干、人力和脚手架。

Today , it 's measured in tree trunks , manpower , scaffolding .

这藤盘绕在树干上

The vine twines round the tree .

部分树干可以再生。

Parts of the trunk can regrow .

这棵树的树干差不多有一米宽，它早在法国大革命不久后就发芽了。

This one ­– its trunk almost a metre across – would have sprouted10 soon after the French Revolution .

它的高度有时候可以超过六十英尺，而其周长——也就是树干一圈的长度——则能够达到二十英尺之多。

Its height sometimes exceeds sixty feet , while the girth , or distance round the trunk , is often more than twenty feet .

当我们把橡木砍倒在地的时候就能看见从树干中心向树皮扩散的许多年轮。

When the tree is cut down , you can see a series of rings in the wood extending from the centre of the trunk to the bark .

但是，也有一棵树，树干弯弯曲曲，看上去不太好看。这棵树干弯曲的树很难过。他想，“我长得真丑！其他的树都又直又有型，只有我，长得曲里拐弯的。”

The crooked trunk tree was sad . He thought , " How ugly I am ! All the others are straight and shapely . I alone have a crooked trunk . "

环绕成圈的树干。（B）相连的根系。

Circled tree trunks . ( B ) Connected root systems .

树干毕赤酵母戊糖连续发酵及低pH值处理技术

Continuous Fermentation of Pentose by Pichia Stipitis with Low-pH Treatments

林外降水、穿透水、树干茎流的pH月平均最高值均出现在5月，最低值出现在12月。

The maximum pH value of precipitation outside the forest , through-fall and stem-flow were in May while the minimum were in the December .

叶片对Al、Fe和Pb的吸附能力较树干皮和树枝皮强。

Adsorption ability of the leaf blades to Al , Fe and Pb was beyond that of trunk bark and branch bark .

Fe、Zn、Mn质量浓度在林外降水、穿透水和树干茎流之间存在着显著的差异（p0.05），而Cu和Pb质量浓度差异却不显著。

Concentrations of Fe , Zn and Mn had significant differences ( p0.05 ) among outside-forest rainfall , throughfall and stemflow .

树干木质部和树皮N、P、K、Ca和Mg含量与树干圆盘高度呈显著的正相关或正相关。

There are marked positive or positive relativity between the percentage contents of N , P , K , Ca and Mg and the disc height to the bole xylem .

ERT法在树干水分运移监测中的运用

Application of ERT method in monitoring tree water movement

树干1m以下的粗皮裂缝内分布的卵占总卵量的725%；

72.5 % of the total eggs are in crevices of the rough bark of the trunk one meter from the ground .