分六部分的

In order to find out completely the soil-wheat contaiminated by heavy metals in Tianjin sewage farm, we collect samples on the dry land and examinate contents of heavy metals in soil-wheat system. Firstly, the anthor evaluates that soil irrigated by sewage that has been contaminated slightly, the main polluting factors are Cd and Zn, and then the anthor evaluates soil according to different regions, soil types and irrigating water. Secondly, the anthor analyzes content and enrichment ability of heavy metals in different part of wheat, evaluates wheat is contaiminated by Cd widespreadly, only few samples polluted by Zn.Finally the anthor put up correlative analysis about heavy metal contents in the soil-wheat system, as well as plant enrichment coefficient and some physico-chemical properties of soil, and establishes a prognostic model about heavy metal content among wheat spike, soil, soil types, PH, organic matter and salinity with the quantifying theory.The prognostic accuracy of primarily contaminative factors is the best with compound correlative coefficient examining, the model can be founded.With improvement of living level, people need cleaner food.

为全面了解天津市污灌区农产品生产地土壤和旱地作物小麦的重金属污染状况，我们于2004～2005年对全市污灌区的土壤和小麦进行了采样，在对该区土壤—小麦系统中六种重金属元素(Cd、Cu、Pb、Zn、Cr和Ni)的含量进行检测的基础上，本文首先分析评价了污灌区农田土壤的环境质量总体已达到了轻度污染水平，主要的污染因子是Cd和Zn，同时对污灌区农田土壤分区县、土壤类型和不同灌水类型进行了评价；然后分析了重金属在小麦不同部位的含量与富集能力，评价了污灌区旱地作物小麦普遍遭受了Cd的污染，只有个别样点遭受了Zn的污染；最后对土壤—小麦系统重金属含量间以及植物富集系数与土壤部分理化性质间进行了相关分析，由于土壤类型是定性变量，本论文以数量化理论建立了小麦穗实中重金属含量与土壤中重金属全量、土壤类型、PH值、有机质和全盐量间的预测模型，经复相关系数检验，污灌区主要的污染因子Cd和Zn的预测精度最高，模型可以成立。

Even this spring, when little had kuo penciled in as his fifth starter, a shoulder strain derailed him. he allowed the padres only one run in six innings while dueling jake peavy last week, but kuo wasn.t satisfied with four walks, and in a bullpen session over the weekend, scrapped his windup and went exclusively out of the stretch.

即使是今年春天，当小教练准备把小小郭填入第5号先发位子时，肩膀拉伤却又再次阻挡了他，上星期他对决教士王牌jake peavy六局只失1分，不过小小郭很不满意自己的四次保送，在上周末的牛棚练投时，他跳过了挥臂式的部分而单单只练投垒上有人时的投法。

A barely audible ff septuplet of semiquaver chords and two rabid glissandi are thrown in by the soloist, before piano and bass section end the movement in five different Gs.

独奏者敲出一个几乎听不清的使用最强音的十六分音符七连音和弦和两个狂燥的滑音，然后，钢琴和铜管部分在五个不同的G上结束了本乐章。

This thesis divides prefaces altogether, introduction,research of the diatomaceous earth, carrying calcining dealing with and purly diatomaceous earth, diatomaceous earth application in modified asphalt , diatomaceous earth among modified pitch modify mechanism probe into function to asphalt and conclusion 6 parts .

本论文共分前言、硅藻土的研究、硅藻土的提纯和煅烧处理、硅藻土在改性沥青中的应用、硅藻土对沥青改性作用的机理探讨和结论六个部分。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。