落叶松

The separation of quartz from specularite was achieved by the addition of quebracho as iron minerals depressant.

添加落叶松栲胶能较好地实现石英和镜铁矿人工混合矿分离。

The magnetite and specularite was depressed by using quebracho as the depressant of the iron minerals.

使用落叶松栲胶能够有效地实现对镜铁矿和磁铁矿的选择性抑制。

The separation of quartz from specularite was achieved by the addition of quebracho as iron mineral's depressant.

添加落叶松栲胶能较好地实现石英和镜铁矿人工混合矿分离。

The addition of quebracho increased the hydrophilicity of the iron minerals, and changed their zeta potentials markedly, and improved the reverse flotation separation of quartz from specularite.

落叶松拷胶的添加能增强镜铁矿和磁铁矿表面的亲水程度，显著改变两种矿物的表面电性，从而实现石英和镜铁矿的反浮选分离。

Their main products are "Jinhai" brand series of plywood, compounded floor single plank, use materials as Shina, birch, maple, oak, willow, sand pine, red pine, etc.

公司主要产品为系列的"金海"牌椴木、柞木、枫桦、楸木、色木、水曲柳、白松、落叶松等针阔叶材胶合板、复合地板、单板等。

The larch sawfly has one generation per year. It over winters as mature larva in a silky cocoon under litter.

落叶松红腹叶蜂在带岭林区一年发生一代，以老熟幼虫在落叶层下丝茧内越冬。

Larch sawfly ; Biology ; Characteristics

落叶松红腹小蜂；生物学；特性

Tall larch of western North America have pale green sharply pointed leaves and oblong cones; an important timber tree.

北美西部高大的落叶松属植物，浅绿色尖角树叶，椭圆形球果；重要的木材。

Condensed tannin-larch valonia, a kind of nature organic polymolecule and formaldehyde solution and dimethylamine water solution were used as raw materials to complete the Mannich reaction for tannin modification and the production was obtained.

本文以天然有机高分子化合物——落叶松栲胶为原料，用甲醛、二甲胺通过曼尼希反应对其中的缩合类单宁进行阳离子化改性，制得阳离子单宁。

The results shows that various properties of larch plywood sheathing meet the requirement of northern American and other relative standards, and the products can be used as sheathings of light wood-frame houses.

结果表明，国产落叶松结构胶合板墙面板的各项性能均达到和超过北美及相关标准要求，可以用作轻型木结构房屋覆板。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。