larch的例句大全

Seed Biological Properties of Two Types of Dahurian Larch with Different Wood Color

两种材色兴安落叶松种子生物学特性的比较

The study on the chemical structure characteristics of Dahurian larch lignin

兴安落叶松木素化学结构特性的研究

Study on natural Dahurian Larch stand growth model and variable density yield table

兴安落叶松天然林林分生长模型和可变密度收获表的研究

Studies on Genetic Variation and Early Selection of Japanese Larch Clones

日本落叶松无性系遗传变异及早期选择的研究

Partial Substitution of Hybrid Larch and Birch for Black Spruce TMP for the Production of Newsprint Grade

用落叶松和白桦代替部分黑云杉生产新闻纸用TMP

Ash has much higher fine root biomass density in the soil than larch at stand level ( with the max value of 4442.3 vs. 2234.9 gm-3).

在林分水平上，水曲柳的根生物量密度高于落叶松（分别为4442.3和2234.9g/m3）。

A new cultivated variety of Japanese Larch

日本落叶松新栽培变种

Research on Classification by Appearance of Larch Timber and Vibration Inspection Tests contingent survey

落叶松锯材外观分等与振动检测试验的研究临时检查临时检验意外检验

In order to demonstrate the effects of different light intensities on the constitutive resistances of the dahurian larch, we determined the defense protein activity, contents of phenolic acids and condensed tannin.

测定生长于不同光照下的兴安落叶松幼苗针叶内防御蛋白活性、酚酸和单宁的含量；结合对舞毒蛾的生物测定，首次系统探讨了光照强度对兴安落叶松组成抗虫性的影响。

The growing model of the larch cell in a annual ring

落叶松木材细胞年轮内生长模型的研究

The basal area proportion of Dahurian larch should be controlled to 90%-95% on shady slope and to 85%-90% on sunny slope.

落叶松断面积在阴坡应控制在90%～95%，在阳坡应控制在85%～90%；

Firstly we study the changes of wood characteristics when larch lumbers were dried to different moisture content level under different temperature, analyses the influence to wood characteristics and drying quality caused by temperature and moisture content.

首先研究了落叶松在不同温度下干燥至不同含水率时的材性变化，分析了温度、含水率对材性及干燥质量的影响；

Temperature gradient promotes transfer of moisture in larch lumbers, but should form and maintain long time temperature gradient to accelerate drying rate through proper schedule;

温度梯度可以促进木材内部水分的传递，但应通过采取适当的工艺形成并维持较长时间的温度梯度来加快干燥速度；

At last, final drying schedules of small-diameter lumbers of Larch and Cathay poplar were developed according to the result of this research, and suggestions were given to improve drying quality.

最后，根据上述研究结果，确定了30mm厚小径木落叶松和大青杨锯材的干燥基准，提出了改善小径木锯材干燥质量的有效措施。