阴性的

The negative rate of DIGFA in healthy people was 100%(40/40). The cross reaction rate in 20 cysticercosis cases and 25 schistosomiasis cases were 5%(1/20) and 4%(1/25), respectively.

DIGFA分别检测正常人血清 40例、囊虫病患者血清 2 0例、日本血吸虫病患者血清 2 5例，前者均为阴性，后两者的交叉反应率分别为 5 %和 4%。

The sensitivity was 94.4%. Of 206 samples of sera of pigs without Cysticercus infections, 187 were negative.

检测206份非流行区无囊虫感染的猪血清，阴性反应187份，恃异性为90.8％。

Cytology was negative in 19 cases or suspected in 17 cases of mesothelioma CYFRA21-1 positive.

19例细胞学为阴性或可疑的间皮瘤中有17例CYFRA21-1阳性。

So the deal is they can't definitively say that it's primary liver cancer.

可是我的一项血液肿瘤试验是阴性，肿瘤医生讲很奇怪。

Objective To explore the relationship of temperatures for denaturalization and annealing to the false negative PCR result.

目的 探讨聚合酶链式反应变性及退火温度与产物假阴性之间的关系。

The internal reference was established by the universal primer pair CQUTC6/CQUTC7 for Tilletia genera, which could be used to determinate the reality of PCR system and exclude both false positive and false negative.

以腥黑穗菌属通用引物对CQUTC6/CQUTC7为内置对照，可以确定被检样品是否含PCR抑制物质进而判断检测体系是否正确，同时有效地排除样品检测结果的假阳性和假阴性。

In this article,one-year old Dianthus plumarius was used as materials to study systematically its physiological and ecological properties of photosynthesis、drought resistance and shade resistance in natural environment.

本研究以一年生地被石竹的播种苗为供试材料，系统研究其在自然生态环境条件下光合生理特性、抗旱性和耐阴性，结果表明： 1。

Inspection the day before yesterday to the hospital, the hospital with dipstick test that is negative!

前天到医院检查，医院用试纸测的，说是阴性！

Objective To survey influence of glutaraldehyde to ELISA testing and provide basis for clinical laboratory to choose suitable disinfector.

目的 探讨戊二醛消毒剂对酶联免疫法造成的假阳性及假阴性影响，为临床免疫实验室合理选择消毒剂提供依据。

A negative result does not rule out the possibility that the dog has distemper.

即使出现阴性亦不能排除狗瘟的可能性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐