體循環(huán)的容量肺循環(huán)的7倍。

（或：體循環(huán)的容量約比肺循環(huán)大6倍。）

4. Acute appendicitis among older patients has a mortality rate many times that of appendicitis in young adults.

老年人患急性闌尾炎的死亡率比靑年人高許多倍。

5. There are more than 5 times as many hospital beds as before liberation.

醫(yī)院床位數為解放前的5倍多。

（或：醫(yī)院床位數比解放前增加4倍多。）

6. At present the factory produces not less than three times as many medical instruments as it did in 1965.

現在該廠生產的醫(yī)療儀器至少為1965年的3倍。

（或：現在該廠生產的醫(yī)療儀器至少比1965年多2倍。）

7. Mercury weighs about thirteen times as much as water.

水銀的重量約為水的13倍。

（或：水銀約比水重12倍。）

8. The dose given should be two to three times as great as those required to mainiain health under normal conditions.

所需劑量應為正常情況下維持健康所需的2~3倍。

（或：所需量應比正常情況下維持健康所需的高1?2倍。）

9. In the United States the incidence of metastatic carcinoma is at least twenty times greater than that of primary carcinoma.

在美國，轉移性癌癥的發(fā)生率至少為原發(fā)性癌癥的20倍。

10. The incidence of the disease is five times higher in men than in women.

男性患此病要比女性多4倍。

11. The incubation period is three times longer than that of influenza.

此病的潛伏期為流惑的3倍。