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- The effects of diamond grain sizes on wear resistance ratio of the sintering diamond compacts are investigated. 研究了金剛石的粒度對燒結體磨耗比的影響；
- The old style resistance ratio was 1:3, whereas the new DB and RR resistance ratio is a minimum of 1:15. 以前的電阻比為1：3，但是現在的電阻比的最小值已經(jīng)達到1：15。
- Resistance ratio(RR) is calculated based on the baseline data tested with Taihu susceptible strain. 抗性倍數以太湖敏感品系為對照計算獲得。
- Results The resistance ratio of the field-collected strains to DDVP>66.85,and to propoxur,permethrin,cypermethrin and deltamethrin were 1.20,5.66,5.14 and 5.10 respectively. 結果蘇州市德國小蠊對敵敵畏的抗性系數大于66.;85;對殘殺威、氯菊酯、氯氰菊酯和溴氰菊酯的抗性系數分別是1
- The resistance ratio of the field-collected strains to DDVP>66.85,and to propoxur,permethrin,cypermethrin and deltamethrin were 1.20,5.66,5.14 and 5.10 respectively. 蘇州市德國小蠊對敵敵畏的抗性系數大于66.;85;對殘殺威、氯菊酯、氯氰菊酯和溴氰菊酯的抗性系數分別是1
- Objective:To assess the Doppler perfusion index(DPI),portal congestive index(PCI)and resistance ratio index(RR)for differential diagnosis of malignant and benign hepatic space occupying lesions. 目的：應用多普勒超聲（D－US）測定多普勒血流灌注指數（DPI）、門(mén)脈充血指數（PCI）及阻力比（RR）等血流參數，用以評價(jià)這些血流參數在肝內良、惡性占位病變中的鑒別診斷和早期診斷價(jià)值。
- The drug resistance ratio of gram-negative rods to the third generation of cephalosporin was elevated.It pointed out that one should strengthen the culture pathogenic bacteria and drug ... 革蘭陰性桿菌對三代頭孢菌素的耐藥率增高,指出今后應加強病原菌培養及藥敏監測,以指導臨床科學(xué)使用抗生素。
- The slide cut off the valley from the rest of the world. 山崩切斷了這個(gè)山谷與外界的聯(lián)系。
- That of resistance ratios were 9.6,29.4,7.9 folds and 4.1, 18.1, 29 folds to imidacloprid, omethoate and methomyl. 蒼山、泰安兩種群對4種藥劑的抗性亦有不同程度的提高。
- The resistance ratios of An. dirus to deltamethrin and clocythrin were 1.12 and 1.31 times in Qiongzhong. 瓊中縣大劣按蚊對溴氰菊酯和氟氯氰菊酯的抗性倍數分別為1.;12和1
- House values may begin to slide. 房?jì)r(jià)可能開(kāi)始逐漸下降了。
- The drawers slide in and out easily. 這些抽屜很容易推進(jìn)拉出。
- Price slide after the company report a loss. 這個(gè)公司報虧損之后，價(jià)格就下滑。
- Resistance ratios to deltamethrin,beta-cypermethrin,cypermethrin,cyfluthrin and DDVP were(1.52)-(8.28),but there are very susceptive to propoxue with resistance ratio(0.92)-(1.13). 對溴氰菊酯、高效氯氰菊酯、順式氯氰菊酯、高效氟氯氰菊酯、敵敵畏已不同程度地產(chǎn)生抗性;抗性倍數在1.;52~8
- She got depressed and began to let things slide. 她情緒低落，一切都聽(tīng)之任之。
- Put on your skis before you slide down the chute. 先穿上雪屐再滑下陡坡道。
- electric resistance ratio of soil 土壤電阻率
- The car went into a slide on the iced road. 汽車(chē)在結冰的路上打滑了。
- pulmonary systemic vascular resistance ratio 肺/體循環(huán)阻力比
- the resistance ratio with high density 高密度電阻率法
