The plant is an efficient sand binder, and the prostrate, rooting stems form widely spreading mats.

植株是一名有效率的沙裝訂工人和匍匐iGAo视频网在线观看一级欧美，根莖形成寬平展的墊席无码一级毛片一区二区。

Wild pea of seashores of north temperate zone having tough roots and purple flowers and useful as a sand binder.

一種野生黧豆99热精品区，具長(zhǎng)而強(qiáng)壯的根和紫花动漫高潮娇喘抽搐喷水视频，分布于北溫帶沿海，可以固沙十三以下岁毛片带血A级。

The characteristics of Sophora moorcroftiana (such as trade-offs in growth and reproduction, morphological characteristics which may have drought-resistant significance, long life span and slow growth) in response to disturbance mean that it can be selected as a sand binder in its distributed area.

砂生槐一系列的干擾適應(yīng)機(jī)制（如生長(zhǎng)和繁殖的均衡无码18、形態(tài)上的耐干擾特性、壽命長(zhǎng)插的太舒服在线视频、生長(zhǎng)慢等）體現(xiàn)了它在其分布區(qū)作為固沙植物種的潛能视频色色。

Foundry sand binder, the electrode coating agent.

鑄造型砂的粘結(jié)劑、焊條的被覆劑等国产在线小视频欧美看大片。

The core sand binder can be characterized with higher strength,easy collapsibility,better gradation and l ess cost,hence it is particularly suitably used in non-ferrous metal castings.

它 的主要特點(diǎn)是：強(qiáng)度高欧洲一级黄色视频、潰散性好、無(wú)毒国产一级a爱看片免费视频、無(wú)污染国产精品一本二本在线、成本低，特別適用于低熔點(diǎn)的鋁美女黄18以下禁止免费看、鎂合金及鑄鐵件的生產(chǎn)成年黄页免费在线观看。

To meet the requirements of workability and high early strength of the concrete, the mix proportion of the concrete for main girder is designed with set retarding, high pumpability, high early strength in low water/binder ratio through optimization of quantities of binder and fly-ash, and optimization of water/binder ratio and sand ratio.

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The main contents include: the original sand and refractory raw materials, bonding materials, add materials, auxiliary materials, process materials, inorganic sand and core sand binder, organic binder sand, other mold sand, foundry paint, investment casting materials, type of EPC.

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The modified starch binder has suitable viscosity and higher specific adhesive strength; besides, the binder bonded core sand has excellent comprehensive property and can partially replace synthetic resin binder bonded sand effectively.

該改性淀粉粘接劑黏度適中九九99re6这里都是精品，比粘接強(qiáng)度大，且其粘接芯砂具有優(yōu)良的綜合性能操逼逼亚洲国产，能代替部分合成樹脂粘接劑淫乱精品自拍，效果顯著。

Orthogonal experiment under special condition showed that modifier M has marked effect on properties of no bake sand. Other factors such as modifier B,phosphate concentration and aluminum hydroxide have some impact on properties of binder. It can be found by experiments that strengths of no bake sand are raised notably by binder that modified by modifier B. Modifier B can reduce the strength of no bake sand at high room temperature apart from condition of low room temperature that it can accelerate the reaction and strengthen the sand. Modest content of modifier M in binder has some improvement to anti-wettability of sand. But modifier B has not such notable effect. Electronic microscope shows that near cracks in no bake product there are fibrous shape substances formed when the samples are moistured in high humidity air for sometime.

通過(guò)改性劑B對(duì)粘結(jié)劑自硬砂的性能影響試驗(yàn)發(fā)現(xiàn)，改性劑B能顯著提高粘結(jié)劑自硬砂的強(qiáng)度黄色网页免费观看，在0℃左右很低的環(huán)境溫度下改性劑M有利于提高自硬砂的反應(yīng)速度和砂型強(qiáng)度外老女人精品视频国产，但在較高環(huán)境溫度下，改性劑M均降低粘結(jié)劑自硬砂的強(qiáng)度免费一级IA片在观看播放视频，但是適量的改性劑M有利于改善自硬砂的抗吸濕性A片插一插，而改性劑B對(duì)于改善自硬砂的抗吸濕性的作用不如改性劑M明顯，電鏡觀察發(fā)現(xiàn)抗吸濕性較好的自硬砂在高濕度下存放一定時(shí)間后日本A级黄色网站，在粘結(jié)膜裂紋處會(huì)形成一種絨毛狀物質(zhì)国产精品人人爽人人做，該物質(zhì)對(duì)裂紋具有愈合作用，這種絨毛狀物質(zhì)中具有改性劑M中的某種成分国产精品一区久久久久久，且含量很高一级不卡黄片，由此說(shuō)明改性劑M對(duì)提高抗吸濕性有利。

When rolling the roadbed, the best degree of compaction is 93%~95%. When taking Aeolian sand for preventing the water rising, the Aeolian sand replacement should be set above water table, which should normally be made at 50~80 cm depth of soil base with 15~20 cm thickness of replacement for medium wet subgrade and 20~30 cm for wet subgrade. When using stabilized soil inorganic binder for prevention and control of the frost damage, the thickness of the binder is about 25 cm The mass proportion of cement, coal and Aeolian is about 6:40:54 and lime, fly ash and aeolian is about 14:30:56. Based on these, comparative evaluation for various preventing and curing measures of the Aeolian subgrade was given.

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