英语释义

1. the disintegrated rock material usually unconsolidated and unchanged or only slightly changed that underlies and generally gives rise to the true soil by the natural process of soil development — called also source material — compare horizon sense 2, solum

片语

parent material erosion母质侵蚀

parent material horizon[土壤]

parent soil material土壤母质

loess parent material黄土母质

parent t material母质

sedimentary parent material沉积母质

parent material orchard母本园

parent skeleton material水泥沥青混合料

purple parent material紫色母质

英汉例句

• the variety of cotton with the later diseased time and the lower disease developing speed was the ideal parent material of disease-resisted breeding.

  在抗病育种中，发病时间晚和发病速度慢的品种（系）是较为理想的抗病亲本。

• cytological observation indicates that they belong to 1b/1r type which is a kind of antigen parent material hard to obtain.

  细胞学观察表明，它们均系1b/1r类型，是难得的抗源亲本材料。

• the subsoil underneath is the earth from which the soil was made and is called the parent material .

  下面的亚土壤是土壤起始形成的地方，称为母质。

• low profile captive fasteners are ideal solutions when parent material thickness is not sufficient to countersink, but protrusion above the face of the panel must be kept to a minimum.

  用于材质不够硬，而不能鉆孔的时候，但材料表面的突出物必须最少。

• for the tensile strength, the parent material is the biggest, the welding joint is the second, and the welding wire is the worst.

  就抗拉强度而言，母材最大，焊接接头次之，焊丝最小。

• the internal relations between the development of principal soil genus and sedimentary parent material types are analysed.

  滨湖相和海相五种类型，初步探讨了该平原主要土属的发育与沉积母质类型之间的内在关系。

• a idea is put forward that the soldered areas of both the parent material preheated and that soldered are not allowed to be red or bright yellow when stainless steel parts are.

  提出不锈钢钎焊时被预热和被钎焊的母材都不允许焊接区呈红色和亮黄色的新观点。

• gh3039 laser-welded joints have the same tensile strength as the parent material at room temperature and at elevated temperatures;

  gh3039激光焊接头在室温和高温时均达到了与母材等强度要求；

• under the same parent material condition, urease activity was significantly correlated with forming time and maturity of soil.

  在母质相同的情况下，脲酶活性高低又与成土时间的长短和土壤熟化程度呈正相关。

• criteria for dividing grades are parent rock in mountains and soil parent material and soil texture in plain area.

  山区以母巖，平原地区以成土母质类型和土壤质地作为划分依据；

• the contents and profile distributions of total mn and available mn of the dryland soil and paddy soil derived from the identical parent material were remarkably different.

  同一母质发育的旱地土壤和水田土壤的全锰和有效锰含量在土壤剖面中的分布明显不同。

• gs yudou 8 is a narrow-leafed soybean variety derived from the natural hybrid of zheng 74046 line and a tip soybean parent material (paternal) with a pedigree selection method.

  gs豫豆8号是用系谱法从郑74046品系与尖叶桥梁亲本自然杂交株的杂种后代中选育成的窄叶型大豆新品种。

• but the structure of purple soil parent material is loose and easy to efflorescent, anti-erodibility;

  但紫色土成土母巖结构疏松，易风化，抗蚀性低；

• using j607rh welding rod made in china, the weld seam metal and the parent material are of iso-strength.

  焊缝金属与母材的强度配合表现为等强匹配，国产j607rh焊条均能与之获得较好的强度匹配。

• the concentrations of nutrients in soils and eucalyptus' leaves vary greatly because of different parent material and different texture under the eucalyptus plantations in leizhou.

  在雷州桉树人工林下，两种类型的砖红壤由于受不同母质和质地的影响，土壤养分和桉树叶片养分质量分数有较大差异。

• parent material is the major factor influencing the content of hydrous micas in clays.

  海积物、河积物及页巖上发育的土壤粘粒云母含量一般较高；

• parent material of suining group is easy eroded, and the erosion material is of poor cohesion and structure and even easier being eroded by runoff.

  遂宁组母质易风化，风化后的碎屑黏聚力弱、结构力差，易遭受径流侵蚀。

• according to this study, we recognize four types of mixed deposits: parent material mixing, mixing due to gradual facies change, insitu mixing and gravity flow mixing.

  混合沉积在低位体系域最为发育，高位和湖侵体系域混合沉积作用受到抑制。

• effects of different insulation packing system, dispersing system and coupled system to parent material processing and film forming are analyzed to direct the production.

  分析了不同保温填充体系、分散体系和偶联体系对母料加工及成膜性的影响，用于指导生产。关键?。

• this species is the high-tech biotechnology breeding of parent material to compound hybrid integrated trait more outstanding.

  本品种是采用高科技生物技术选育的亲本材料配制的杂交种，综合性状更为突出。

• the results showed that the principal factors affecting the metal background contents were landforms for plain area and soil parent material for mountain area.

  分析结果表明，影响土壤元素背景值的主要因素，在平原地区是地貌条件，在山区是成土母质。

• the result showed that the tested trace elements had different distribution in different parent material profile and soil types. red parent material had high content of total zn.

  结果表明：红土母质中全锌含量均高于黄土母质，全铜在不同亚类、不同母质黑土中含量分布变异较小；