材料代用必须经过设计单位和甲方同意并签证后，方可使用。
Material submission can't be used before designer and Party a have agreed and attested.
另外，在吸收消化引进国外技术基础上，结合国产材料代用，介绍几种关键部件的改进设计和应用。
Moreover, on the basis of digestion of imported technology and substitution with domestic material, design improvement and application of some key components are also introduced.
几十年来，赛璐璐一直在商业上充当龟甲、角、骨和其他材料的代用品。
Celluloid had been commercially available for decades as a substitute for tortoise-shell, horn, bone and other materials.
这种新牌号合金代用某些常用冷变形模具材料，如工具钢，钨钴合金，模具寿命明显提高。
When this new material is used as cold dies instead of the usual materials, such as tool steels or tungsten carbide, the life of these is longer.
根据实验室试验结果提出，粘土型滑石有可能成为镁质瓷和碱性耐火材料结合剂原料，作为块滑石的廉价代用品。
Experimental test shows that the lutaceous talc may become a new kind of agglomerant of magnesian porcelain and alkaline refractory materials and a cheap substitute of massive talc.
作为双酚a的代用品，可作为聚碳酸酯、环氧树脂、聚酯、酚醛树脂的原料，以及聚砜、聚醚砜的原料。也用于彩色摄影材料和热敏材料显色剂。
As substitutes for Bisphenol a, used for polycarbonate, epoxy resin, polyester, and phenolic resin synthesis, as well as developer for photographic material and thermal paper.
采用可生物降解的高分子材料制备的血红蛋白纳米微囊是新一代的血液代用品，具有与天然红细胞相似的性质，是一种很有潜力的氧载体。
The biodegradable nanocapsules containing hemoglobin (Hb) have the similar characteristics to natural red blood cells, therefore as the potential to become a new form of oxygen carrier.
用单纯形重心设计，优选出了这3种材料的合适搭配方案，制成了既具有防粘砂效果又具有抗夹砂能力的煤粉代用材料3R粉。
By means of single pattern center design 3 steps for optimized match project. According this the 3R powder substituted for seacoal was made. It not only had the effect of pre…
现代复合材料自60年代用作工程结构材料以来已取得很大成就。
Composite materials have been widely applied as engineering structure materials since 1960s.
经动物实验和临床应用结果表明碳纤维硬脑膜具有良好的材料性能和优异的生物性能，是一种比较理想的硬脑膜代用品。
It is confirmeel through three years watch that tge new material is not only fine malenal function, but excellent biologic function. It supplied a new, hotter repiring material for the. neurosurgical.
现代材料使得设计者可以造出轻巧的头盔，这和30年代用吊带固定的皮帽相去甚远。
Modem materials enable the designers to construct a lightweight helmet, far from the days of leather cap with straps 0f the 1930's.
现代材料使得设计者可以造出轻巧的头盔，这和30年代用吊带固定的皮帽相去甚远。
Modem materials enable the designers to construct a lightweight helmet, far from the days of leather cap with straps 0f the 1930's.
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