耐

The coating thickness is greater than 20um ,having good weatherproof nature, corrosion resistance , flexibility and glossiness .

涂层厚度大于20um ，具有良好的耐候性、耐腐蚀性、柔韧性及光泽度。

This study was based on the soy protein isolates as raw materials. Chemical modification( acetylation,succinylation ,phosphorylation and urea modification) of SPI were used to improve adhesive strength and water resistance of SPI-based plywood adhesives. Then two modified ways combined were applied to SPI and their adhesive properties were studied. This research also characterized the thermal and adhesive properties of two major soy protein components 7S conglycinin and 11S glycinin after urea modification. Finally, the mechanism of improving SPI's adhesive properties was preliminarily discussed.

本文是以大豆分离蛋白为原料，进行SPI的化学修饰以提高其胶粘特性；采用了磷酸化试剂三聚磷酸钠、乙酰化试剂乙酸酐、琥珀酰化试剂琥珀酸酐和有机溶剂尿素修饰和变性SPI，研究修饰和变性后的SPI作为木材胶粘剂的胶粘性与耐水性，同时研究了两种方法复合修饰SPI对其粘度、胶粘强度和耐水性的影响；然后以SPI为原料，进行7S和11S球蛋白的提取以及胶粘特性的研究，对SPI起胶粘特性的机理进行了初步探讨。

Analyzed the salt content and degree of mineralization of ground water of plough level in the irrigated area where in the east of Hebei, according to different standard to divide the rice belt into suitable district, halophytic vegetation district, salt-tolerant crop district and dry crop district, then it proposed relevant planting technique and assorted technical measure.

分析了冀东滦下灌区四县稻田土壤耕层的全盐含量和地下水矿化度，并依据我国盐渍土壤划分标准和不同作物的耐盐能力，将该稻区划分为宜稻区、盐生植物种植区、耐盐作物种植区和大田旱作物种植区，并提出了各个区域的种植技术方案及配套的工程技术措施。

This article reviewed the currently commercialized herbicidal inhibitors of amino acid biosynthesis,functional mechanism and the advance in transgenic herbicide-tolerant plants.

本文综述了常用的耐氨基酸生物合成抑制剂类除草剂、作用机理及耐除草剂转基因植物的研究进展。

Huangzaosi inbred lines(Huangzaosi and its derived lines) is recognized as one of five heterotic groups by maize breeding in China. It has characters of high combining ability, ideal plant type, drought and barrent tolerance, wide adaptation and so on.

黄早四种群自交系是我国玉米育种的五大骨干杂种优势类群之一，建立在黄早四及其改良的衍生系基础之上，具有配合力高、株型好、耐旱耐瘠、适应性广等特点。

Drug sensitivity tests showed that the resistance to gentamycin,levofloxacin,trimethoprim/sulfamethoxazole,rifampin,erythromycin,elindamycin and tetracycline were hish among MuH and MuL strains,and most of these strains were multi-drug resistant.All strains were susceptible to vaneomycin.

药物敏感性试验显示，MuH和MuL菌株对庆大霉素、左氧氟沙星、复方磺胺甲恶唑、利福平、红霉素、克林霉素、四环素的耐药率都较高，且呈多药耐药，但对万古霉素全部敏感。

Hygrophilous species disappeared partly, and disturbance-resistant species and exotic species expanded their populations in the tourism area;(2) the community structure of bryophytes on the fir trunks in the tourism area was found simpler than that in the undisturbed area; and (3) the trunk at height of 120~180cm was more susceptible to disturbance, but the base was not affected signif icantly by disturbance.

在旅游活动频繁地段，耐荫喜湿物种局部消失，耐干旱抗干扰的植物种群扩大；(2)旅游活动频繁地段树干附生苔藓植物的丰富度、盖度和生物量较未扰动地段小；(3)距地面较高的高度120cm和180cm处受到的干扰强度最大，基部的影响较小。

A trivalent plant expression vector containing Bt cry1Ah gene, cry1Ie gene and glyphosate-tolerant 2mG2-epsps gene was constructed, glyphosate isopropylamine salt as a screening agent, 2mG2-epsps gene as a selectable maker gene. The vector was transfer into maize immature embryonic calli by microprojectile bombardment, and 69 T0 generation plants were obtained. PCR analysis showed that 17 plants had the integration of insect-resistant cry1Ah, cry1Ie gene and glyphosate-tolerance 2mG2-epsps gene.

同时构建了含有Bt cry1Ah和cry1Ie基因和耐草甘膦2mG2-epsps基因的三价植物表达载体，通过基因枪轰击法转化玉米愈伤组织，以2mG2-epsps为筛选标记基因，以草甘膦异丙胺盐作为筛选剂，获得T0代转化植株69株，PCR检测结果表明：有17株已完整的整合有抗虫基因cry1Ah、cry1Ie和耐草甘膦基因2mG2-epsps的3个目的基因，RT-PCR分析外源基因可以正确转录，已获得结实转基因植株。

Previous studies had showed the brilliant applicational prospects of the salt tolerance related genes of Kandelia candel and Dunaliella salina in breeding salt tolerant crops through gene transferring technique.

早期的研究成果已经展示了盐藻和秋茄耐盐基因在培育转基因耐盐作物中的广泛应用前景。

MethodIn the pot test, 4 kinds of wild halophytes (Melilotus suaveolens L, Limonium bicolor K., Salsola collina P.and Artemisia argyi L.) were cultivated in 3 kinds of salt and alkali soils selected from the wastelands of Dagong district, Jixian county and Xiqing of Tianjin city for salt tolerance stress treatments and their physiological indexed such as proline, MAD and soluble sugar content was determined.

方法］土壤为采自天津市大港区、蓟县、西青荒地的3种盐碱土，采用盆栽试验对4种盐生植物（草木樨、猪毛菜、艾蒿和补血草）进行耐盐胁迫试验，测定其耐盐指标（游离脯氨酸、丙二醛和可溶性糖含量）。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！